Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
JavaScript (11)
Selectors (9)
CSS (7)
WebGL extensions (6)
Typographic font features (5)
Clipping, shapes, and masking (4)
Fonts (4)
HTML elements (4)
Text (4)
Web components (4)
Animation (3)
Blend mode (3)
Image formats (3)
SVG (3)
Scrolling (3)
Strings (3)
Arrays (2)
Color types (2)
Explicit defaults (2)
Forms (2)
Internationalization (2)
Media queries (2)
Promises (2)
WebAssembly (2)
WebRTC (2)
CSS environment variables (1)
CSS object models (1)
Canvas (1)
Credential management (1)
Custom elements (1)
DOM (1)
Gradients (1)
Images (1)
Iterators (1)
Layout (1)
Messaging (1)
Multi-column (1)
Resource hints (1)
Security (1)
Text wrap (1)
Transitions (CSS) (1)
Units (1)
2020
2 features
• July 2020
Widely Available
The :read-only and :read-write CSS pseudo-classes match elements that are read-only or read-write, respectively. For example, :read-only matches <input> and <textarea> elements with the readonly attribute.
Chrome
1
Firefox
78
Safari
4
Edge
13
Baseline Date: Jul 28, 2020
• January 2020
Widely Available
The :indeterminate CSS pseudo-class selects any form element whose state is indeterminate, such as checkboxes that have been set to an indeterminate state with JavaScript, or radio buttons which are members of a group in which all radio buttons are unchecked.
Chrome
39
Firefox
51
Safari
10
Edge
79
Baseline Date: Jan 15, 2020