On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 10 on 2011-03-08 Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Chrome Android version 18 on 2012-06-27 Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Edge version 12 on 2015-07-29
In Firefox version 29 on 2014-04-29 Note: Before Firefox 23, box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Firefox for Android version 29 on 2014-04-29 Note: Before Firefox for Android 23, box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Internet Explorer version 8 on 2009-03-19 Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Quest Browser version 5.0 on undefined Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Opera version 7 on 2003-01-28
In Opera Android version 14 on 2013-05-21 Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In Safari version 5.1 on 2011-07-20
In Safari on iOS version 6 on 2012-09-10
In Samsung Internet version 1.0 on 2013-04-27 Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In WebView Android version 4 on 2011-10-18 Note: box-sizing is not respected when the height is calculated from window.getComputedStyle().
In WebView on iOS version 6 on 2012-09-10