diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..c7b2d36c
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,47 @@
+# Infos
+# -----
+.PHONY: help
+
+## Display this help screen
+help:
+	@printf "\e[36m%-35s %s\e[0m\n" "Command" "Usage"
+	@sed -n '/^## /{\
+		s/## //g;\
+		h;\
+		n;\
+		s/:.*//g;\
+		G;\
+		s/\n/ /g;\
+		p;}' Makefile | awk '{printf "\033[33m%-35s\033[0m%s\n", $$1, substr($$0,length($$1)+1)}'
+
+
+# Zig commands
+# ------------
+.PHONY: build build-release run run-release shell test bench
+
+## Build in debug mode
+build:
+	@printf "\e[36mBuilding (debug)...\e[0m\n"
+	@zig build || (printf "\e[33mBuild ERROR\e[0m\n"; exit 1;)
+	@printf "\e[33mBuild OK\e[0m\n"
+
+build-release:
+	@printf "\e[36mBuilding (release safe)...\e[0m\n"
+	@zig build -Drelease-safe || (printf "\e[33mBuild ERROR\e[0m\n"; exit 1;)
+	@printf "\e[33mBuild OK\e[0m\n"
+
+## Run the server
+run: build
+	@printf "\e[36mRunning...\e[0m\n"
+	@./zig-out/bin/browsercore || (printf "\e[33mRun ERROR\e[0m\n"; exit 1;)
+
+## Run a JS shell in release-safe mode
+shell:
+	@printf "\e[36mBuilding shell...\e[0m\n"
+	@zig build shell || (printf "\e[33mBuild ERROR\e[0m\n"; exit 1;)
+
+## Test
+test:
+	@printf "\e[36mTesting...\e[0m\n"
+	@zig build test || (printf "\e[33mTest ERROR\e[0m\n"; exit 1;)
+	@printf "\e[33mTest OK\e[0m\n"
diff --git a/build.zig b/build.zig
index 2fb538ef..4834dcdd 100644
--- a/build.zig
+++ b/build.zig
@@ -71,6 +71,7 @@ fn common(
 }
 
 fn linkLexbor(step: *std.build.LibExeObjStep) void {
+    // cmake . -DLEXBOR_BUILD_SHARED=OFF
     const lib_path = "../lexbor/liblexbor_static.a";
     step.addObjectFile(lib_path);
     step.addIncludePath("../lexbor/source");
diff --git a/src/dom.zig b/src/dom.zig
index d87594f1..56e24f77 100644
--- a/src/dom.zig
+++ b/src/dom.zig
@@ -1,24 +1,91 @@
 const Console = @import("jsruntime").Console;
 
-pub const EventTarget = @import("dom/event_target.zig").EventTarget;
-pub const Node = @import("dom/node.zig").Node;
+// DOM
+const EventTarget = @import("dom/event_target.zig").EventTarget;
+const Node = @import("dom/node.zig").Node;
+const Element = @import("dom/element.zig").Element;
+const Document = @import("dom/document.zig").Document;
 
-pub const Element = @import("dom/element.zig").Element;
-pub const HTMLElement = @import("dom/element.zig").HTMLElement;
-pub const HTMLBodyElement = @import("dom/element.zig").HTMLBodyElement;
+// HTML
+pub const HTMLDocument = @import("html/document.zig").HTMLDocument;
 
-pub const Document = @import("dom/document.zig").Document;
-pub const HTMLDocument = @import("dom/document.zig").HTMLDocument;
+const E = @import("html/elements.zig");
 
+// Interfaces
 pub const Interfaces = .{
     Console,
+
+    // DOM
     EventTarget,
     Node,
-
     Element,
-    HTMLElement,
-    HTMLBodyElement,
-
     Document,
+
+    // HTML
     HTMLDocument,
+
+    E.HTMLElement,
+    E.HTMLMediaElement,
+
+    // TODO: generate HTMLElements comptime
+    E.HTMLUnknownElement,
+    E.HTMLAnchorElement,
+    E.HTMLAreaElement,
+    E.HTMLAudioElement,
+    E.HTMLBRElement,
+    E.HTMLBaseElement,
+    E.HTMLBodyElement,
+    E.HTMLButtonElement,
+    E.HTMLCanvasElement,
+    E.HTMLDListElement,
+    E.HTMLDialogElement,
+    E.HTMLDataElement,
+    E.HTMLDivElement,
+    E.HTMLEmbedElement,
+    E.HTMLFieldSetElement,
+    E.HTMLFormElement,
+    E.HTMLFrameSetElement,
+    E.HTMLHRElement,
+    E.HTMLHeadElement,
+    E.HTMLHeadingElement,
+    E.HTMLHtmlElement,
+    E.HTMLIFrameElement,
+    E.HTMLImageElement,
+    E.HTMLInputElement,
+    E.HTMLLIElement,
+    E.HTMLLabelElement,
+    E.HTMLLegendElement,
+    E.HTMLLinkElement,
+    E.HTMLMapElement,
+    E.HTMLMetaElement,
+    E.HTMLMeterElement,
+    E.HTMLModElement,
+    E.HTMLOListElement,
+    E.HTMLObjectElement,
+    E.HTMLOptGroupElement,
+    E.HTMLOptionElement,
+    E.HTMLOutputElement,
+    E.HTMLParagraphElement,
+    E.HTMLPictureElement,
+    E.HTMLPreElement,
+    E.HTMLProgressElement,
+    E.HTMLQuoteElement,
+    E.HTMLScriptElement,
+    E.HTMLSelectElement,
+    E.HTMLSourceElement,
+    E.HTMLSpanElement,
+    E.HTMLStyleElement,
+    E.HTMLTableElement,
+    E.HTMLTableCaptionElement,
+    E.HTMLTableCellElement,
+    E.HTMLTableColElement,
+    E.HTMLTableRowElement,
+    E.HTMLTableSectionElement,
+    E.HTMLTemplateElement,
+    E.HTMLTextAreaElement,
+    E.HTMLTimeElement,
+    E.HTMLTitleElement,
+    E.HTMLTrackElement,
+    E.HTMLUListElement,
+    E.HTMLVideoElement,
 };
diff --git a/src/dom/document.zig b/src/dom/document.zig
index 584595dc..de782fe8 100644
--- a/src/dom/document.zig
+++ b/src/dom/document.zig
@@ -1,16 +1,9 @@
 const std = @import("std");
 
-const jsruntime = @import("jsruntime");
-const Case = jsruntime.test_utils.Case;
-const checkCases = jsruntime.test_utils.checkCases;
-
 const parser = @import("../parser.zig");
 
-const DOM = @import("../dom.zig");
-const Node = DOM.Node;
-const Element = DOM.Element;
-const HTMLElement = DOM.HTMLElement;
-const HTMLBodyElement = DOM.HTMLBodyElement;
+const Node = @import("node.zig").Node;
+const Element = @import("element.zig").Element;
 
 pub const Document = struct {
     proto: Node,
@@ -29,7 +22,7 @@ pub const Document = struct {
         return Document.init(null);
     }
 
-    fn getElementById(self: Document, elem_dom: *parser.Element, id: []const u8) ?Element {
+    pub fn getElementById(self: Document, elem_dom: *parser.Element, id: []const u8) ?Element {
         if (self.base == null) {
             return null;
         }
@@ -61,62 +54,3 @@ pub const Document = struct {
         return null;
     }
 };
-
-pub const HTMLDocument = struct {
-    proto: Document,
-    base: *parser.DocumentHTML,
-
-    pub const prototype = *Document;
-
-    pub fn init() HTMLDocument {
-        return .{
-            .proto = Document.init(null),
-            .base = parser.documentHTMLInit(),
-        };
-    }
-
-    pub fn deinit(self: HTMLDocument) void {
-        parser.documentHTMLDeinit(self.base);
-    }
-
-    pub fn parse(self: *HTMLDocument, html: []const u8) !void {
-        try parser.documentHTMLParse(self.base, html);
-        self.proto.base = parser.documentHTMLToDocument(self.base);
-    }
-
-    // JS funcs
-    // --------
-
-    pub fn get_body(self: HTMLDocument) ?HTMLBodyElement {
-        const body_dom = parser.documentHTMLBody(self.base);
-        return HTMLBodyElement.init(body_dom);
-    }
-
-    pub fn _getElementById(self: HTMLDocument, id: []u8) ?HTMLElement {
-        const body_dom = parser.documentHTMLBody(self.base);
-        if (self.proto.getElementById(body_dom, id)) |elem| {
-            return HTMLElement.init(elem.base);
-        }
-        return null;
-    }
-};
-
-pub fn testExecFn(
-    js_env: *jsruntime.Env,
-    comptime _: []jsruntime.API,
-) !void {
-    var constructor = [_]Case{
-        .{ .src = "document.__proto__.constructor.name", .ex = "HTMLDocument" },
-        .{ .src = "document.__proto__.__proto__.constructor.name", .ex = "Document" },
-        .{ .src = "document.__proto__.__proto__.__proto__.constructor.name", .ex = "Node" },
-        .{ .src = "document.__proto__.__proto__.__proto__.__proto__.constructor.name", .ex = "EventTarget" },
-    };
-    try checkCases(js_env, &constructor);
-
-    var getElementById = [_]Case{
-        .{ .src = "let getElementById = document.getElementById('content')", .ex = "undefined" },
-        .{ .src = "getElementById.constructor.name", .ex = "HTMLElement" },
-        .{ .src = "getElementById.localName", .ex = "main" },
-    };
-    try checkCases(js_env, &getElementById);
-}
diff --git a/src/dom/element.zig b/src/dom/element.zig
index 70b0d5ab..72a4b8d0 100644
--- a/src/dom/element.zig
+++ b/src/dom/element.zig
@@ -1,13 +1,8 @@
 const std = @import("std");
 
-const jsruntime = @import("jsruntime");
-const Case = jsruntime.test_utils.Case;
-const checkCases = jsruntime.test_utils.checkCases;
-
 const parser = @import("../parser.zig");
 
-const DOM = @import("../dom.zig");
-const Node = DOM.Node;
+const Node = @import("node.zig").Node;
 
 pub const Element = struct {
     proto: Node,
@@ -29,26 +24,3 @@ pub const Element = struct {
         return parser.elementLocalName(self.base);
     }
 };
-
-// HTML elements
-// -------------
-
-pub const HTMLElement = struct {
-    proto: Element,
-
-    pub const prototype = *Element;
-
-    pub fn init(elem_base: *parser.Element) HTMLElement {
-        return .{ .proto = Element.init(elem_base) };
-    }
-};
-
-pub const HTMLBodyElement = struct {
-    proto: HTMLElement,
-
-    pub const prototype = *HTMLElement;
-
-    pub fn init(elem_base: *parser.Element) HTMLBodyElement {
-        return .{ .proto = HTMLElement.init(elem_base) };
-    }
-};
diff --git a/src/html/document.zig b/src/html/document.zig
new file mode 100644
index 00000000..e2e60d7d
--- /dev/null
+++ b/src/html/document.zig
@@ -0,0 +1,403 @@
+const std = @import("std");
+
+const parser = @import("../parser.zig");
+
+const jsruntime = @import("jsruntime");
+const Case = jsruntime.test_utils.Case;
+const checkCases = jsruntime.test_utils.checkCases;
+
+const Document = @import("../dom/document.zig").Document;
+
+const E = @import("elements.zig");
+
+pub const HTMLDocument = struct {
+    proto: Document,
+    base: *parser.DocumentHTML,
+
+    pub const prototype = *Document;
+
+    pub fn init() HTMLDocument {
+        return .{
+            .proto = Document.init(null),
+            .base = parser.documentHTMLInit(),
+        };
+    }
+
+    pub fn deinit(self: HTMLDocument) void {
+        parser.documentHTMLDeinit(self.base);
+    }
+
+    pub fn parse(self: *HTMLDocument, html: []const u8) !void {
+        try parser.documentHTMLParse(self.base, html);
+        self.proto.base = parser.documentHTMLToDocument(self.base);
+    }
+
+    // JS funcs
+    // --------
+
+    pub fn get_body(self: HTMLDocument) ?E.HTMLBodyElement {
+        const body_dom = parser.documentHTMLBody(self.base);
+        return E.HTMLBodyElement.init(body_dom);
+    }
+
+    pub fn _getElementById(self: HTMLDocument, id: []u8) ?E.HTMLElement {
+        const body_dom = parser.documentHTMLBody(self.base);
+        if (self.proto.getElementById(body_dom, id)) |elem| {
+            return E.HTMLElement.init(elem.base);
+        }
+        return null;
+    }
+
+    pub fn _createElement(self: HTMLDocument, tag_name: []const u8) E.HTMLElements {
+        const base = parser.documentCreateElement(self.proto.base.?, tag_name);
+
+        // TODO: order by probability instead of alphabetically
+        // TODO: this does not seems very efficient, do we have a better way?
+        if (std.mem.eql(u8, tag_name, "a")) {
+            return .{ .anchor = E.HTMLAnchorElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "area")) {
+            return .{ .area = E.HTMLAreaElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "audio")) {
+            return .{ .audio = E.HTMLAudioElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "br")) {
+            return .{ .br = E.HTMLBRElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "base")) {
+            return .{ .base = E.HTMLBaseElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "body")) {
+            return .{ .body = E.HTMLBodyElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "button")) {
+            return .{ .button = E.HTMLButtonElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "canvas")) {
+            return .{ .canvas = E.HTMLCanvasElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "dl")) {
+            return .{ .dlist = E.HTMLDListElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "dialog")) {
+            return .{ .dialog = E.HTMLDialogElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "data")) {
+            return .{ .data = E.HTMLDataElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "div")) {
+            return .{ .div = E.HTMLDivElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "embed")) {
+            return .{ .embed = E.HTMLEmbedElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "fieldset")) {
+            return .{ .fieldset = E.HTMLFieldSetElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "form")) {
+            return .{ .form = E.HTMLFormElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "frameset")) {
+            return .{ .frameset = E.HTMLFrameSetElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "hr")) {
+            return .{ .hr = E.HTMLHRElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "head")) {
+            return .{ .head = E.HTMLHeadElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "h1")) {
+            return .{ .heading = E.HTMLHeadingElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "h2")) {
+            return .{ .heading = E.HTMLHeadingElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "h3")) {
+            return .{ .heading = E.HTMLHeadingElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "h4")) {
+            return .{ .heading = E.HTMLHeadingElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "h5")) {
+            return .{ .heading = E.HTMLHeadingElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "h6")) {
+            return .{ .heading = E.HTMLHeadingElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "html")) {
+            return .{ .html = E.HTMLHtmlElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "iframe")) {
+            return .{ .iframe = E.HTMLIFrameElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "img")) {
+            return .{ .img = E.HTMLImageElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "input")) {
+            return .{ .input = E.HTMLInputElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "li")) {
+            return .{ .li = E.HTMLLIElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "label")) {
+            return .{ .label = E.HTMLLabelElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "legend")) {
+            return .{ .legend = E.HTMLLegendElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "link")) {
+            return .{ .link = E.HTMLLinkElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "map")) {
+            return .{ .map = E.HTMLMapElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "meta")) {
+            return .{ .meta = E.HTMLMetaElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "meter")) {
+            return .{ .meter = E.HTMLMeterElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "ins")) {
+            return .{ .mod = E.HTMLModElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "del")) {
+            return .{ .mod = E.HTMLModElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "ol")) {
+            return .{ .olist = E.HTMLOListElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "object")) {
+            return .{ .object = E.HTMLObjectElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "optgroup")) {
+            return .{ .optgroup = E.HTMLOptGroupElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "option")) {
+            return .{ .option = E.HTMLOptionElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "output")) {
+            return .{ .output = E.HTMLOutputElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "p")) {
+            return .{ .paragraph = E.HTMLParagraphElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "picture")) {
+            return .{ .picture = E.HTMLPictureElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "pre")) {
+            return .{ .pre = E.HTMLPreElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "progress")) {
+            return .{ .progress = E.HTMLProgressElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "blockquote")) {
+            return .{ .quote = E.HTMLQuoteElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "q")) {
+            return .{ .quote = E.HTMLQuoteElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "script")) {
+            return .{ .script = E.HTMLScriptElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "select")) {
+            return .{ .select = E.HTMLSelectElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "source")) {
+            return .{ .source = E.HTMLSourceElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "span")) {
+            return .{ .span = E.HTMLSpanElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "style")) {
+            return .{ .style = E.HTMLStyleElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "table")) {
+            return .{ .table = E.HTMLTableElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "caption")) {
+            return .{ .tablecaption = E.HTMLTableCaptionElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "th")) {
+            return .{ .tablecell = E.HTMLTableCellElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "td")) {
+            return .{ .tablecell = E.HTMLTableCellElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "col")) {
+            return .{ .tablecol = E.HTMLTableColElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "tr")) {
+            return .{ .tablerow = E.HTMLTableRowElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "thead")) {
+            return .{ .tablesection = E.HTMLTableSectionElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "tbody")) {
+            return .{ .tablesection = E.HTMLTableSectionElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "tfoot")) {
+            return .{ .tablesection = E.HTMLTableSectionElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "template")) {
+            return .{ .template = E.HTMLTemplateElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "textarea")) {
+            return .{ .textarea = E.HTMLTextAreaElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "time")) {
+            return .{ .time = E.HTMLTimeElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "title")) {
+            return .{ .title = E.HTMLTitleElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "track")) {
+            return .{ .track = E.HTMLTrackElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "ul")) {
+            return .{ .ulist = E.HTMLUListElement.init(base) };
+        } else if (std.mem.eql(u8, tag_name, "video")) {
+            return .{ .video = E.HTMLVideoElement.init(base) };
+        }
+        return .{ .unknown = E.HTMLUnknownElement.init(base) };
+    }
+};
+
+// Tests
+// -----
+
+fn upper(comptime name: []const u8, comptime indexes: anytype) []u8 {
+    // indexes is [_]comptime_int
+    comptime {
+        var upper_name: [name.len]u8 = undefined;
+        for (name) |char, i| {
+            var toUpper = false;
+            for (indexes) |index| {
+                if (index == i) {
+                    toUpper = true;
+                    break;
+                }
+            }
+            if (toUpper) {
+                upper_name[i] = std.ascii.toUpper(char);
+            } else {
+                upper_name[i] = char;
+            }
+        }
+        return &upper_name;
+    }
+}
+
+// fn allUpper(comptime name: []const u8) []u8 {
+//     comptime {
+//         var upper_name: [name.len]u8 = undefined;
+//         for (name) |char, i| {
+//             upper_name[i] = std.ascii.toUpper(char);
+//         }
+//         return &upper_name;
+//     }
+// }
+
+pub fn testExecFn(
+    alloc: std.mem.Allocator,
+    js_env: *jsruntime.Env,
+    comptime _: []jsruntime.API,
+) !void {
+    var constructor = [_]Case{
+        .{ .src = "document.__proto__.constructor.name", .ex = "HTMLDocument" },
+        .{ .src = "document.__proto__.__proto__.constructor.name", .ex = "Document" },
+        .{ .src = "document.__proto__.__proto__.__proto__.constructor.name", .ex = "Node" },
+        .{ .src = "document.__proto__.__proto__.__proto__.__proto__.constructor.name", .ex = "EventTarget" },
+    };
+    try checkCases(js_env, &constructor);
+
+    var getElementById = [_]Case{
+        .{ .src = "let getElementById = document.getElementById('content')", .ex = "undefined" },
+        .{ .src = "getElementById.constructor.name", .ex = "HTMLElement" },
+        .{ .src = "getElementById.localName", .ex = "main" },
+    };
+    try checkCases(js_env, &getElementById);
+
+    comptime var htmlElements = [_][]const u8{
+        "a", // Anchor
+        "area",
+        "audio",
+        "br", // BR
+        "base",
+        "body",
+        "button",
+        "canvas",
+        "dl", // DList
+        "dialog",
+        "data",
+        "div",
+        "embed",
+        "fieldset", // FieldSet
+        "form",
+        "frameset", // FrameSet
+        "hr", // HR
+        "head",
+        "h1", // Heading
+        "h2", // Heading
+        "h3", // Heading
+        "h4", // Heading
+        "h5", // Heading
+        "h6", // Heading
+        "html",
+        "iframe", // IFrame
+        "img", // Image
+        "input",
+        "li", // LI
+        "label",
+        "legend",
+        "link",
+        "map",
+        "meta",
+        "meter",
+        "ins", // Mod
+        "del", // Mod
+        "ol", // OList
+        "object",
+        "optgroup", // OptGroup
+        "option",
+        "output",
+        "p", // Paragraph
+        "picture",
+        "pre",
+        "progress",
+        "blockquote", // Quote
+        "q", // Quote
+        "script",
+        "select",
+        "source",
+        "span",
+        "style",
+        "table",
+        "caption", // TableCaption
+        "th", // TableCell
+        "td", // TableCell
+        "col", // TableCol
+        "tr", // TableRow
+        "thead", // TableSection
+        "tbody", // TableSection
+        "tfoot", // TableSection
+        "template",
+        "textarea", // TextArea
+        "time",
+        "title",
+        "track",
+        "ul", // UList
+        "video",
+    };
+    var createElement: [htmlElements.len * 3]Case = undefined;
+    inline for (htmlElements) |elem, i| {
+        var upperName: []const u8 = undefined;
+        if (std.mem.eql(u8, elem, "a")) {
+            upperName = "Anchor";
+        } else if (std.mem.eql(u8, elem, "dl")) {
+            upperName = "DList";
+        } else if (std.mem.eql(u8, elem, "fieldset")) {
+            upperName = "FieldSet";
+        } else if (std.mem.eql(u8, elem, "frameset")) {
+            upperName = "FrameSet";
+        } else if (std.mem.eql(u8, elem, "h1") or
+            std.mem.eql(u8, elem, "h2") or
+            std.mem.eql(u8, elem, "h3") or
+            std.mem.eql(u8, elem, "h4") or
+            std.mem.eql(u8, elem, "h5") or
+            std.mem.eql(u8, elem, "h6"))
+        {
+            upperName = "Heading";
+        } else if (std.mem.eql(u8, elem, "iframe")) {
+            upperName = "IFrame";
+        } else if (std.mem.eql(u8, elem, "img")) {
+            upperName = "Image";
+        } else if (std.mem.eql(u8, elem, "del") or std.mem.eql(u8, elem, "ins")) {
+            upperName = "Mod";
+        } else if (std.mem.eql(u8, elem, "ol")) {
+            upperName = "OList";
+        } else if (std.mem.eql(u8, elem, "optgroup")) {
+            upperName = "OptGroup";
+        } else if (std.mem.eql(u8, elem, "p")) {
+            upperName = "Paragraph";
+        } else if (std.mem.eql(u8, elem, "blockquote") or std.mem.eql(u8, elem, "q")) {
+            upperName = "Quote";
+        } else if (std.mem.eql(u8, elem, "caption")) {
+            upperName = "TableCaption";
+        } else if (std.mem.eql(u8, elem, "th") or std.mem.eql(u8, elem, "td")) {
+            upperName = "TableCell";
+        } else if (std.mem.eql(u8, elem, "col")) {
+            upperName = "TableCol";
+        } else if (std.mem.eql(u8, elem, "tr")) {
+            upperName = "TableRow";
+        } else if (std.mem.eql(u8, elem, "thead") or
+            std.mem.eql(u8, elem, "tbody") or
+            std.mem.eql(u8, elem, "tfoot"))
+        {
+            upperName = "TableSection";
+        } else if (std.mem.eql(u8, elem, "textarea")) {
+            upperName = "TextArea";
+        } else if (std.mem.eql(u8, elem, "ul")) {
+            upperName = "UList";
+        } else {
+            if (elem.len == 2) {
+                upperName = upper(elem, [_]comptime_int{ 0, 1 });
+            } else {
+                upperName = upper(elem, [_]comptime_int{0});
+            }
+        }
+
+        createElement[i * 3] = Case{
+            .src = try std.fmt.allocPrint(alloc, "var {s}Elem = document.createElement('{s}')", .{ elem, elem }),
+            .ex = "undefined",
+        };
+        createElement[(i * 3) + 1] = Case{
+            .src = try std.fmt.allocPrint(alloc, "{s}Elem.constructor.name", .{elem}),
+            .ex = try std.fmt.allocPrint(alloc, "HTML{s}Element", .{upperName}),
+        };
+        createElement[(i * 3) + 2] = Case{
+            .src = try std.fmt.allocPrint(alloc, "{s}Elem.localName", .{elem}),
+            .ex = elem,
+        };
+    }
+    try checkCases(js_env, &createElement);
+
+    var unknown = [_]Case{
+        .{ .src = "let unknown = document.createElement('unknown')", .ex = "undefined" },
+        .{ .src = "unknown.constructor.name", .ex = "HTMLUnknownElement" },
+    };
+    try checkCases(js_env, &unknown);
+}
diff --git a/src/html/elements.zig b/src/html/elements.zig
new file mode 100644
index 00000000..7d4db0d2
--- /dev/null
+++ b/src/html/elements.zig
@@ -0,0 +1,763 @@
+const parser = @import("../parser.zig");
+
+const Element = @import("../dom/element.zig").Element;
+
+// Abstract class
+// --------------
+
+pub const HTMLElement = struct {
+    proto: Element,
+
+    pub const prototype = *Element;
+
+    pub fn init(elem_base: *parser.Element) HTMLElement {
+        return .{ .proto = Element.init(elem_base) };
+    }
+};
+
+const HTMLElementsTags = enum {
+    unknown,
+    anchor,
+    area,
+    audio,
+    br,
+    base,
+    body,
+    button,
+    canvas,
+    dlist,
+    dialog,
+    data,
+    div,
+    embed,
+    fieldset,
+    form,
+    frameset,
+    hr,
+    head,
+    heading,
+    html,
+    iframe,
+    img,
+    input,
+    li,
+    label,
+    legend,
+    link,
+    map,
+    meta,
+    meter,
+    mod,
+    olist,
+    object,
+    optgroup,
+    option,
+    output,
+    paragraph,
+    picture,
+    pre,
+    progress,
+    quote,
+    script,
+    select,
+    source,
+    span,
+    style,
+    table,
+    tablecaption,
+    tablecell,
+    tablecol,
+    tablerow,
+    tablesection,
+    template,
+    textarea,
+    time,
+    title,
+    track,
+    ulist,
+    video,
+};
+
+// TODO: generate comptime?
+pub const HTMLElements = union(HTMLElementsTags) {
+    unknown: HTMLUnknownElement,
+    anchor: HTMLAnchorElement,
+    area: HTMLAreaElement,
+    audio: HTMLAudioElement,
+    br: HTMLBRElement,
+    base: HTMLBaseElement,
+    body: HTMLBodyElement,
+    button: HTMLButtonElement,
+    canvas: HTMLCanvasElement,
+    dlist: HTMLDListElement,
+    dialog: HTMLDialogElement,
+    data: HTMLDataElement,
+    div: HTMLDivElement,
+    embed: HTMLEmbedElement,
+    fieldset: HTMLFieldSetElement,
+    form: HTMLFormElement,
+    frameset: HTMLFrameSetElement,
+    hr: HTMLHRElement,
+    head: HTMLHeadElement,
+    heading: HTMLHeadingElement,
+    html: HTMLHtmlElement,
+    iframe: HTMLIFrameElement,
+    img: HTMLImageElement,
+    input: HTMLInputElement,
+    li: HTMLLIElement,
+    label: HTMLLabelElement,
+    legend: HTMLLegendElement,
+    link: HTMLLinkElement,
+    map: HTMLMapElement,
+    meta: HTMLMetaElement,
+    meter: HTMLMeterElement,
+    mod: HTMLModElement,
+    olist: HTMLOListElement,
+    object: HTMLObjectElement,
+    optgroup: HTMLOptGroupElement,
+    option: HTMLOptionElement,
+    output: HTMLOutputElement,
+    paragraph: HTMLParagraphElement,
+    picture: HTMLPictureElement,
+    pre: HTMLPreElement,
+    progress: HTMLProgressElement,
+    quote: HTMLQuoteElement,
+    script: HTMLScriptElement,
+    select: HTMLSelectElement,
+    source: HTMLSourceElement,
+    span: HTMLSpanElement,
+    style: HTMLStyleElement,
+    table: HTMLTableElement,
+    tablecaption: HTMLTableCaptionElement,
+    tablecell: HTMLTableCellElement,
+    tablecol: HTMLTableColElement,
+    tablerow: HTMLTableRowElement,
+    tablesection: HTMLTableSectionElement,
+    template: HTMLTemplateElement,
+    textarea: HTMLTextAreaElement,
+    time: HTMLTimeElement,
+    title: HTMLTitleElement,
+    track: HTMLTrackElement,
+    ulist: HTMLUListElement,
+    video: HTMLVideoElement,
+};
+
+// Deprecated HTMLElements in Chrome (2023/03/15)
+// HTMLContentelement
+// HTMLShadowElement
+
+// Abstract sub-classes
+// --------------------
+
+pub const HTMLMediaElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLMediaElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+// HTML elements
+// -------------
+
+pub const HTMLUnknownElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLUnknownElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLAnchorElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLAnchorElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLAreaElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLAreaElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLAudioElement = struct {
+    proto: HTMLMediaElement,
+
+    pub const prototype = *HTMLMediaElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLAudioElement {
+        return .{ .proto = HTMLMediaElement.init(elem_base) };
+    }
+};
+
+pub const HTMLBRElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLBRElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLBaseElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLBaseElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLBodyElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLBodyElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLButtonElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLButtonElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLCanvasElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLCanvasElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLDListElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLDListElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLDialogElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLDialogElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLDataElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLDataElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLDivElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLDivElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLEmbedElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLEmbedElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLFieldSetElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLFieldSetElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLFormElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLFormElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLFrameSetElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLFrameSetElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLHRElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLHRElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLHeadElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLHeadElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLHeadingElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLHeadingElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLHtmlElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLHtmlElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLIFrameElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLIFrameElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLImageElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLImageElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLInputElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLInputElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLLIElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLLIElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLLabelElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLLabelElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLLegendElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLLegendElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLLinkElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLLinkElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLMapElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLMapElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLMetaElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLMetaElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLMeterElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLMeterElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLModElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLModElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLOListElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLOListElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLObjectElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLObjectElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLOptGroupElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLOptGroupElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLOptionElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLOptionElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLOutputElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLOutputElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLParagraphElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLParagraphElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLPictureElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLPictureElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLPreElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLPreElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLProgressElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLProgressElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLQuoteElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLQuoteElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLScriptElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLScriptElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLSelectElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLSelectElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLSourceElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLSourceElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLSpanElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLSpanElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLStyleElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLStyleElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTableElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTableElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTableCaptionElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTableCaptionElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTableCellElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTableCellElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTableColElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTableColElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTableRowElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTableRowElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTableSectionElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTableSectionElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTemplateElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTemplateElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTextAreaElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTextAreaElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTimeElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTimeElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTitleElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTitleElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLTrackElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLTrackElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLUListElement = struct {
+    proto: HTMLElement,
+
+    pub const prototype = *HTMLElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLUListElement {
+        return .{ .proto = HTMLElement.init(elem_base) };
+    }
+};
+
+pub const HTMLVideoElement = struct {
+    proto: HTMLMediaElement,
+
+    pub const prototype = *HTMLMediaElement;
+
+    pub fn init(elem_base: *parser.Element) HTMLVideoElement {
+        return .{ .proto = HTMLMediaElement.init(elem_base) };
+    }
+};
diff --git a/src/html.zig b/src/html_test.zig
similarity index 100%
rename from src/html.zig
rename to src/html_test.zig
diff --git a/src/main.zig b/src/main.zig
index 9b6c300e..010dcda8 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -4,7 +4,7 @@ const jsruntime = @import("jsruntime");
 
 const DOM = @import("dom.zig");
 
-const html = @import("html.zig").html;
+const html = @import("html_test.zig").html;
 
 const socket_path = "/tmp/browsercore-server.sock";
 
diff --git a/src/main_shell.zig b/src/main_shell.zig
index 1c1e71d5..91bd0ea2 100644
--- a/src/main_shell.zig
+++ b/src/main_shell.zig
@@ -5,7 +5,7 @@ const Console = @import("jsruntime").Console;
 
 const DOM = @import("dom.zig");
 
-const html = @import("html.zig").html;
+const html = @import("html_test.zig").html;
 
 var doc: DOM.HTMLDocument = undefined;
 
diff --git a/src/parser.zig b/src/parser.zig
index bf4360f6..20df1766 100644
--- a/src/parser.zig
+++ b/src/parser.zig
@@ -32,22 +32,22 @@ pub const NodeType = enum(u4) {
     last_entry,
 };
 
-pub fn nodeEventTarget(node: *Node) *EventTarget {
+pub inline fn nodeEventTarget(node: *Node) *EventTarget {
     return c.lxb_dom_interface_event_target(node);
 }
 
 pub const nodeWalker = (fn (node: ?*Node, _: ?*anyopaque) callconv(.C) Action);
 
-pub fn nodeName(node: *Node) [*c]const u8 {
+pub inline fn nodeName(node: *Node) [*c]const u8 {
     var s: usize = undefined;
     return c.lxb_dom_node_name(node, &s);
 }
 
-pub fn nodeType(node: *Node) NodeType {
+pub inline fn nodeType(node: *Node) NodeType {
     return @intToEnum(NodeType, node.*.type);
 }
 
-pub fn nodeWalk(node: *Node, comptime walker: nodeWalker) !void {
+pub inline fn nodeWalk(node: *Node, comptime walker: nodeWalker) !void {
     c.lxb_dom_node_simple_walk(node, walker, null);
 }
 
@@ -55,16 +55,17 @@ pub fn nodeWalk(node: *Node, comptime walker: nodeWalker) !void {
 
 pub const Element = c.lxb_dom_element_t;
 
-pub fn elementNode(element: *Element) *Node {
+pub inline fn elementNode(element: *Element) *Node {
     return c.lxb_dom_interface_node(element);
 }
 
-pub fn elementLocalName(element: *Element) []const u8 {
-    const local_name = c.lxb_dom_element_local_name(element, null);
+pub inline fn elementLocalName(element: *Element) []const u8 {
+    var size: usize = undefined;
+    const local_name = c.lxb_dom_element_local_name(element, &size);
     return std.mem.sliceTo(local_name, 0);
 }
 
-pub fn elementsByAttr(
+pub inline fn elementsByAttr(
     element: *Element,
     collection: *Collection,
     attr: []const u8,
@@ -89,30 +90,30 @@ pub fn elementsByAttr(
 
 pub const DocumentHTML = c.lxb_html_document_t;
 
-pub fn documentHTMLInit() *DocumentHTML {
+pub inline fn documentHTMLInit() *DocumentHTML {
     return c.lxb_html_document_create();
 }
 
-pub fn documentHTMLDeinit(document_html: *DocumentHTML) void {
+pub inline fn documentHTMLDeinit(document_html: *DocumentHTML) void {
     _ = c.lxb_html_document_destroy(document_html);
 }
 
-pub fn documentHTMLParse(document_html: *DocumentHTML, html: []const u8) !void {
+pub inline fn documentHTMLParse(document_html: *DocumentHTML, html: []const u8) !void {
     const status = c.lxb_html_document_parse(document_html, html.ptr, html.len - 1);
     if (status != 0) {
         return error.DocumentHTMLParse;
     }
 }
 
-pub fn documentHTMLToNode(document_html: *DocumentHTML) *Node {
+pub inline fn documentHTMLToNode(document_html: *DocumentHTML) *Node {
     return c.lxb_dom_interface_node(document_html);
 }
 
-pub fn documentHTMLToDocument(document_html: *DocumentHTML) *Document {
+pub inline fn documentHTMLToDocument(document_html: *DocumentHTML) *Document {
     return &document_html.dom_document;
 }
 
-pub fn documentHTMLBody(document_html: *DocumentHTML) *Element {
+pub inline fn documentHTMLBody(document_html: *DocumentHTML) *Element {
     return c.lxb_dom_interface_element(document_html.body);
 }
 
@@ -120,19 +121,23 @@ pub fn documentHTMLBody(document_html: *DocumentHTML) *Element {
 
 pub const Document = c.lxb_dom_document_t;
 
+pub inline fn documentCreateElement(document: *Document, tag_name: []const u8) *Element {
+    return c.lxb_dom_document_create_element(document, tag_name.ptr, tag_name.len, null);
+}
+
 // Collection
 
 pub const Collection = c.lxb_dom_collection_t;
 
-pub fn collectionInit(document: *Document, size: usize) *Collection {
+pub inline fn collectionInit(document: *Document, size: usize) *Collection {
     return c.lxb_dom_collection_make(document, size);
 }
 
-pub fn collectionDeinit(collection: *Collection) void {
+pub inline fn collectionDeinit(collection: *Collection) void {
     _ = c.lxb_dom_collection_destroy(collection, true);
 }
 
-pub fn collectionElement(collection: *Collection, index: usize) *Element {
+pub inline fn collectionElement(collection: *Collection, index: usize) *Element {
     return c.lxb_dom_collection_element(collection, index);
 }
 
diff --git a/src/run_tests.zig b/src/run_tests.zig
index 7162c8d1..4732b172 100644
--- a/src/run_tests.zig
+++ b/src/run_tests.zig
@@ -3,15 +3,14 @@ const std = @import("std");
 const jsruntime = @import("jsruntime");
 
 const DOM = @import("dom.zig");
-const document = @import("dom/document.zig");
-const element = @import("dom/element.zig");
+const testExecFn = @import("html/document.zig").testExecFn;
 
-const html = @import("html.zig").html;
+const html_test = @import("html_test.zig").html;
 
 var doc: DOM.HTMLDocument = undefined;
 
 fn testsExecFn(
-    _: std.mem.Allocator,
+    alloc: std.mem.Allocator,
     js_env: *jsruntime.Env,
     comptime apis: []jsruntime.API,
 ) !void {
@@ -24,7 +23,7 @@ fn testsExecFn(
     try js_env.addObject(apis, doc, "document");
 
     // run tests
-    try document.testExecFn(js_env, apis);
+    try testExecFn(alloc, js_env, apis);
 }
 
 test {
@@ -34,7 +33,7 @@ test {
     // document
     doc = DOM.HTMLDocument.init();
     defer doc.deinit();
-    try doc.parse(html);
+    try doc.parse(html_test);
 
     // create JS vm
     const vm = jsruntime.VM.init();