50413 2010-12-02 15:15:14 -0800 Strange 2px margin on <button> 2022-06-06 04:15:26 -0700 1 1 1 Unclassified WebKit Forms 528+ (Nightly build) Mac (Intel) OS X 10.6 RESOLVED WONTFIX https://bugs.webkit.org/show_bug.cgi?id=238587 http://www.webdevout.net/test?0T P3 Normal --- 0 jacob webkit-unassigned joepeck JoolsChadwick robert oldest_to_newest 316444 0 jacob 2010-12-02 15:15:14 -0800 I am not certain if the included url will remain at that address long enough, so, if not, it can be seen at... http://dev.rentpost.com/managers (the form <button> at the bottom of the page; contact form) You will notice that I've overridden the margin on that element to force proper layout, but that shouldn't be necessary as margin was never defined and additionally, gecko doesn't render this mysterious margin. 316454 1 joepeck 2010-12-02 15:29:56 -0800 Looks like 2px is the default margin for a button, data:text/html,<button> However, where does this come from? Its tough to tell from the Web Inspector as it doesn't look like it comes from any of the user agent stylesheets. 951955 2 robert 2013-11-18 22:04:27 -0800 2px is an 'intrinsic margin' supplied for form elements that have no width specified. This is WebKit-specific behaviour. 1366803 3 JoolsChadwick 2017-11-01 03:10:25 -0700 Is there any difference between a user agent style sheet value and an "intrinsic" value, other than it not appearing in inspectors? Why does the latter value type exist, other than to waste people's time? If this bug report didn't exist, how is anyone supposed to know that this is not a bug? If your inspector states that a user agent value of "0em" was computed as "2px", why would anyone come to any conclusion other than "webkit is bad at math"?