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Web Platform Baseline Status Breakdown Total Features: 1191
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Categories: All CSS (101) HTML elements (98) Selectors (46) JavaScript (43) Forms (40)
WebGL extensions (37) WebAssembly (22) Media queries (21) Fonts (19) Performance (19) Text (19) Scrolling (18) Arrays (17) Layout (17) HTML (16) Progressive web app (15) Typed arrays (14) Units (14) Canvas (13) Background (12) Color types (12) Media elements (12) Strings (12) Clipping, shapes, and masking (11) Security (11) Web components (11) WebXR (11) Typographic font features (10) Animation (9) Internationalization (9) Reporting (9) Text wrap (9) Clipboard (8) Workers (8) Containment (7) DOM (7) Fetch (7) JavaScript modules (7) Print media (7) Sensors (7) CSS object models (6) Image formats (6) Iterators (6) Landmark elements (6) Positioning (6) Promises (6) SVG (6) Storage (6) Streams (6) Credential management (5) Custom elements (5) Explicit defaults (5) Font synthesis (5) HTTP (5) Messaging (5) Multi-column (5) Resource hints (5) Ruby (5) Selection (5) Speech (5) Transitions (CSS) (5) View transitions (5) Web audio (5) WebGL (5) Container queries (4) Cookies (4) Counters (4) File system access (4) Flexbox (4) Gamepad (4) Grid (4) Images (4) Lists (4) Primitive types (4) Regular expressions (4) WebDriver (4) WebRTC (4) Blend mode (3) Borders and outlines (3) Gradients (3) Image scaling (3) JSON (3) Maps (3) MathML (3) Payments (3) Reading order (3) Scroll markers (3) Transforms (3) WebAuthn (3) WebGPU (3) White space (3) Worklets (3) XML (3) Collections (2) Compute pressure (2) Geolocation (2) IndexedDB (2) Parsing and serialization (2) Resource integrity (2) Sets (2) Text fragments (2) WebMCP (2) CSS environment variables (1)
Showing 6 of 6 features

2015

6 features
• July 2015
Widely Available

The <aside> element represents a portion of a document whose content is only indirectly related to the document's main content.

Chrome 5
Firefox 4
Safari 5
Edge 12
Baseline Date: Jul 29, 2015
Widely Available

The <form> element contains interactive controls for submitting information.

Chrome 1
Firefox 1
Safari 3
Edge 12
Baseline Date: Jul 29, 2015
Widely Available

The <main> element represents the dominant content of a document. It is commonly used together with <header> and <footer>.

Chrome 26
Firefox 21
Safari 7
Edge 12
Baseline Date: Jul 29, 2015
Widely Available

The <nav> element represents a section of a page whose purpose is to provide navigation links, either within the current document or to other documents.

Chrome 5
Firefox 4
Safari 5
Edge 12
Baseline Date: Jul 29, 2015
Widely Available

The <section> element is a generic standalone section of a document, which doesn't have a more specific semantic element to represent it.

Chrome 5
Firefox 4
Safari 5
Edge 12
Baseline Date: Jul 29, 2015