CSS3 attr() function for all properties
- UNOFFWhile attr() is supported for effectively all browsers for the content property, CSS Values and Units Level 5 adds the ability to use attr() on any CSS property, and to use it for non-string values (e.g. numbers, colors).
Chrome
- ❌ 4 - 132: Not supported
- ✅ 133 - 149: Supported
- ✅ 150: Supported
- ✅ 151 - 153: Supported
Edge
- ❌ 12 - 132: Not supported
- ✅ 133 - 149: Supported
- ✅ 150: Supported
Safari
- ❌ 3.1 - 26.3: Not supported
- ❌ 26.4: Not supported
- ❌ 26.5 - 27: Not supported
- ✅ TP: Supported
Firefox
- ❌ 2 - 151: Not supported
- ❌ 152: Disabled by default
- ❌ 153 - 155: Disabled by default
Opera
- ❌ 9 - 116: Not supported
- ✅ 117 - 127: Supported
- ✅ 131: Supported
IE
- ❌ 5.5 - 10: Not supported
- ❌ 11: Not supported
Chrome for Android
- ✅ 149: Supported
Safari on iOS
- ❌ 3.2 - 26.3: Not supported
- ❌ 26.4: Not supported
- ❌ 26.5: Not supported
Samsung Internet
- ❌ 4 - 28: Not supported
- ✅ 29: Supported
- ✅ 30: Supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12.1: Not supported
- ❌ 80: Not supported
UC Browser for Android
- ❌ 15.5: Not supported
Android Browser
- ❌ 2.1 - 4.4.4: Not supported
- ✅ 149: Supported
Firefox for Android
- ❌ 152: Not supported
QQ Browser
- ❌ 14.9: Not supported
Baidu Browser
- ❌ 13.52: Not supported
KaiOS Browser
- ❌ 2.5: Not supported
- ❌ 3: Not supported
See the generated content table for support for attr() for the content property.