23448 2013-10-07 16:59:41 +0000 Should setting scrollTop on root element really reset scrollLeft to 0? 2013-10-07 20:16:29 +0000 1 1 1 Unclassified CSS CSSOM View unspecified PC All RESOLVED FIXED P2 normal --- 1 tonikitoo zcorpan mike zcorpan public-css-bugzilla oldest_to_newest 94395 0 tonikitoo 2013-10-07 16:59:41 +0000 http://dev.w3.org/csswg/cssom-view/#dom-element-scrolltop says: " (...) When setting the scrollTop attribute these steps must be run: (...) 4 - If the element is the root element invoke scroll() with zero as first argument and y as second, and, if the given value is a ScrollOptionsVertical object, the given value as the third argument. (...) " This is not what browsers do, as one can see here running this sample here: http://jsfiddle.net/4bRQc/4/ . IE, Firefox, Opera 12 (pre-blink) and Safari nightly builds do not zero X when setting scrollTop on the root/documentElement node. Similarly, when setting scrollTop on body node, in quirks-mode. ps: Blink/Opera work to match other engines, is under works. Unless, this divergence between the spec description and web engines' behavior is still relevant at this point, I propose wording it like: "4 - If the element is the root element invoke scroll() with *scrollX* as first argument and y as second, and, if the given value is a ScrollOptionsVertical object, the given value as the third argument." That would also make step (4) to match step (5). 94404 1 zcorpan 2013-10-07 20:16:29 +0000 https://dvcs.w3.org/hg/csswg/rev/b79ac21fc79c Thanks!