On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 21 on 2012-07-31 Note: Chrome uses auto as the initial value for min-width.
In Chrome Android version 25 on 2013-02-27 Note: Chrome Android uses auto as the initial value for min-width.
In Edge version 12 on 2015-07-29 Note: Edge uses auto as the initial value for min-width.
In Firefox version 34 on 2014-12-01 Note: Firefox 18 and later (until the value was removed), used auto as the initial value for min-width.
In Firefox for Android version 34 on 2014-12-01 Note: Firefox for Android 18 and later (until the value was removed), used auto as the initial value for min-width.
Not in Internet Explorer
In Quest Browser version 5.0 on undefined Note: Quest Browser uses auto as the initial value for min-width.
In Opera version 12.1 on 2012-11-20 Note: Opera uses auto as the initial value for min-width.
In Opera Android version 14 on 2013-05-21 Note: Opera Android uses auto as the initial value for min-width.
In Safari version 7 on 2013-10-22
In Safari on iOS version 7 on 2013-09-18
In Samsung Internet version 1.5 on 2013-09-25 Note: Samsung Internet uses auto as the initial value for min-width.
In WebView Android version 4.4 on 2013-12-09 Note: WebView Android uses auto as the initial value for min-width.
In WebView on iOS version 7 on 2013-09-18