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. To learn more, see attr() at MDN.

Compatibility

• Chrome 2 Released on 2009-05-21
• Chrome Android 18 Released on 2012-06-27
• Edge 12 Released on 2015-07-29
• Firefox 1 Released on 2004-11-09
• Firefox for Android 4 Released on 2011-03-29
• Safari 3.1 Released on 2008-03-18
• Safari on iOS 2 Released on 2008-07-11