Widely Available
HTML elements
id: headings
<h1> through <h6>
The
<h1> through <h6> HTML elements represent six levels of section headings, in order of decreasing importance.
Baseline Status:
Achieved Widely Available on Jan 29, 2018 (Cross-browser Newly Available since Jul 29, 2015).
Desktop Browser Engine Support
Google Chrome
1
Supported
Mozilla Firefox
1
Supported
Apple Safari
3
Supported
Microsoft Edge
12
Supported
Mobile Browser Engine Support
Chrome Android
18
Firefox Android
4
Safari iOS
1
Specifications and References