Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
CSS (35)
Progressive web app (15)
WebGL extensions (12)
Forms (11)
JavaScript (11)
Performance (11)
WebXR (11)
HTML elements (10)
Scrolling (10)
Selectors (10)
Layout (8)
HTML (7)
Media queries (7)
Reporting (7)
Text (7)
Media elements (6)
Sensors (6)
Canvas (5)
Clipboard (5)
Fonts (5)
Anchor positioning (4)
Animation (4)
CSS object models (4)
Credential management (4)
DOM (4)
Fetch (4)
Speech (4)
WebAssembly (4)
WebDriver (4)
Background (3)
Container queries (3)
Gamepad (3)
Images (3)
Iterators (3)
JavaScript modules (3)
Multi-column (3)
Payments (3)
Print media (3)
Scroll markers (3)
Selection (3)
Storage (3)
Streams (3)
Text wrap (3)
Typographic font features (3)
Web components (3)
WebGL (3)
WebGPU (3)
Clipping, shapes, and masking (2)
Color types (2)
Compute pressure (2)
Cookies (2)
Custom elements (2)
Flexbox (2)
Geolocation (2)
Image formats (2)
Lists (2)
Reading order (2)
Regular expressions (2)
Ruby (2)
SVG (2)
Security (2)
View transitions (2)
Web audio (2)
WebMCP (2)
Workers (2)
Worklets (2)
Counters (1)
File system access (1)
Font synthesis (1)
Grid (1)
Image scaling (1)
IndexedDB (1)
MathML (1)
Resource hints (1)
Resource integrity (1)
Strings (1)
Transitions (CSS) (1)
WebAuthn (1)
XML (1)
Years:
All
Limited Availability
3 features
• In Progress / Not Yet Baseline
Limited
The referenceTarget property of a ShadowRoot object forwards attributes such as for and aria-labelledby to elements inside a shadow DOM. You can use this to, for example, link a <label> to its <input> even if the <input> is in the shadow DOM of a web component.
Chrome
152
Firefox
—
Safari
—
Edge
152
Status: Incomplete cross-engine support
Limited
The :has-slotted CSS pseudo-class matches <slot> elements where the fallback content is not shown. The pseudo-class matches any slotted content, including white space, text nodes, or elements.
Chrome
—
Firefox
136
Safari
—
Edge
—
Status: Incomplete cross-engine support
Limited
The :host-context() CSS pseudo-class selects the containing element of the shadow tree in which it is used if that element or an ancestor matches the provided selector.
Chrome
54
Firefox
—
Safari
—
Edge
79
Status: Incomplete cross-engine support