attr() (content only)

The attr() CSS function, in content property declarations, sets a ::before or ::after pseudo-element's content to the value of the specified HTML attribute.

Baseline Status: Achieved Widely Available on Jan 29, 2018 (Cross-browser Newly Available since Jul 29, 2015).

Desktop Browser Engine Support

Google Chrome

2

Supported

Mozilla Firefox

1

Supported

Apple Safari

3.1

Supported

Microsoft Edge

12

Supported

Mobile Browser Engine Support

Chrome Android

18

Firefox Android

4

Safari iOS

2

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

css.types.attr ↗