CSS Containment
- RECThe CSS contain
property lets developers limit the scope of the browser's styles, layout and paint work for faster and more efficient rendering.
IE
- 5.5 - 10: Not supported
- 11: Not supported
Edge
- 12 - 18: Not supported
- 79 - 87: Supported
- 88: Supported
Firefox
- 2 - 40: Not supported
- 41 - 68: Disabled by default
- 69 - 84: Supported
- 85: Supported
- 86 - 87: Supported
Chrome
- 4 - 50: Not supported
- 51: Disabled by default
- 52 - 87: Supported
- 88: Supported
- 89 - 91: Supported
Safari
- 3.1 - 13.1: Not supported
- 14: Not supported
- TP: Not supported
Opera
- 9 - 37: Not supported
- 38 - 39: Disabled by default
- 40 - 72: Supported
- 73: Supported
iOS Safari
- 3.2 - 13.7: Not supported
- 14: Not supported
Opera Mini
- all: Not supported
Android Browser
- 2.1 - 4.4.4: Not supported
- 81: Supported
Opera Mobile
- 10 - 12.1: Not supported
- 59: Supported
Chrome for Android
- 88: Supported
Firefox for Android
- 85: Supported
UC Browser for Android
- 12.12: Supported
Samsung Internet
- 4 - 5.4: Not supported
- 6.2 - 12.0: Supported
- 13.0: Supported
QQ Browser
- 10.4: Supported
Baidu Browser
- 7.12: Not supported
KaiOS Browser
- 2.5: Disabled by default
- Resources:
- Google Developers article