- From: litherum via GitHub <sysbot+gh@w3.org>
- Date: Mon, 20 Jun 2016 21:22:55 +0000
- To: public-css-archive@w3.org
litherum has just created a new issue for https://github.com/w3c/csswg-drafts: == [cssom] getComputedStyle() with box-offset properties is not web-compatible for over-constrained elements == The CSSOM spec[1] describes the value returned by getComputedStyle() is the "resolved value" which is defined[2] for box-offset properties to be the used value (assuming "display" is not "none"). However, the box-offset properties may conflict. For example, you may say "top: 5px, bottom: 5px;". In this situation, the spec[3] dictates that the used value of "bottom" will be minus the value of "top". However, all browsers[4] currently return "5px" from getComputedStyle() on such an element. Therefore, the spec is not web compatible. Instead, the spec should state that getComputedStyle() returns the computed value of the box-offset properties. [1] https://drafts.csswg.org/cssom/#dom-window-getcomputedstyle [2] https://drafts.csswg.org/cssom/#resolved-value [3] https://www.w3.org/TR/CSS21/visuren.html#relative-positioning [4] - Microsoft Edge 25.10586.0.0 / Microsoft EdgeHTML 13.10586 - Firefox 50.0a1 (2016-06-20) - Firefox 47.0 - Chrome 53.0.2773.0 canary - Chrome 51.0.2704.103 - Safari 9.1.1 - WebKit r202242 Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/203 using your GitHub account
Received on Monday, 20 June 2016 21:22:58 UTC