CSS3 tab-size
- CRMethod of customizing the width of the tab character. Only effective using 'white-space: pre', 'white-space: pre-wrap', and 'white-space: break-spaces'.
Chrome
- 4 - 20: Not supported
- 21 - 41: Partial support
- 42 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Edge
- 12 - 18: Not supported
- 79 - 116: Supported
- 117: Supported
Safari
- 3.1 - 6: Not supported
- 6.1 - 13: Partial support
- 13.1 - 16.5: Supported
- 16.6: Supported
- 17.0 - TP: Supported
Firefox
- 2 - 3.6: Not supported
- 4 - 52: Partial support
- 53 - 90: Supported
- 91 - 116: Supported
- 117: Supported
- 118 - 120: Supported
Opera
- 9 - 10.5: Not supported
- 10.6 - 12.1: Partial support
- 15 - 28: Partial support
- 29 - 101: Supported
- 102: Supported
IE
- 5.5 - 10: Not supported
- 11: Not supported
Chrome for Android
- 117: Supported
Safari on iOS
- 3.2 - 6.1: Not supported
- 7 - 13.3: Partial support
- 13.4 - 16.6: Supported
- 17.0: Supported
- 17.1: Supported
Samsung Internet
- 4 - 21: Supported
- 22: Supported
Opera Mini
- all: Partial support
Opera Mobile
- 10: Not supported
- 11 - 12.1: Partial support
- 73: Supported
UC Browser for Android
- 15.5: Supported
Android Browser
- 2.1 - 4.3: Not supported
- 4.4 - 4.4.4: Partial support
- 117: Supported
Firefox for Android
- 117: Supported
QQ Browser
- 13.1: Supported
Baidu Browser
- 13.18: Supported
KaiOS Browser
- 2.5: Partial support
- 3: Partial support