Web Platform Baseline Status Breakdown
Total Features: 1191
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)
2021
1 features
• November 2021
Widely Available
The fit-content CSS keyword expands a box as needed to fit its contents until the maximum size is reached, preserving the content's preferred aspect ratio.
Chrome
46
Firefox
94
Safari
11
Edge
79
Baseline Date: Nov 2, 2021
2020
1 features
• January 2020
Widely Available
The min-content and max-content CSS keywords represent the smallest and largest intrinsic sizes of an element.
Chrome
46
Firefox
66
Safari
11
Edge
79
Baseline Date: Jan 15, 2020
2019
1 features
• January 2019
Widely Available
In printed page layouts, the break-after, break-before, break-inside CSS properties control where printed pages start and end. Also known as pagination or page breaking.
Chrome
50
Firefox
65
Safari
10
Edge
12
Baseline Date: Jan 29, 2019
2015
4 features
• July 2015
Widely Available
The width and height CSS properties set the preferred physical size of an element.
Chrome
1
Firefox
1
Safari
1
Edge
12
Baseline Date: Jul 29, 2015
Widely Available
The box-sizing CSS property sets whether an element's width and height are calculated based on the content-box, which does not count the size of borders or padding, or border-box, which does count them.
Chrome
10
Firefox
29
Safari
5.1
Edge
12
Baseline Date: Jul 29, 2015