25503 2014-04-29 17:11:34 +0000 How should <br> styling be defined 2014-09-04 22:06:40 +0000 1 1 1 Unclassified CSS Display unspecified Other other NEW P2 normal --- 1 ian jackalmage bruno bzbarsky dbaron ian jackalmage jonas mike public-css-bugzilla oldest_to_newest 104692 0 ian 2014-04-29 17:11:34 +0000 Tab suggests: br { display-box: contents; content: "\A"; white-space: pre; } (The current spec doesn't work because it suggests browsers should by default honour 'border' et al, which browsers don't. They _do_ honour 'display:none', they don't honour 'display:inline', some honour 'position:fixed' or 'float:left'.) 104839 1 ian 2014-04-30 18:26:52 +0000 dbaron raised performance issues around doing anything relying on CSS for <br>, which is an interesting point. 105131 2 ian 2014-05-05 23:24:20 +0000 dbaron: in thinking of this further... why would 'display-box' have performance implications that 'display' doesn't have? 105138 3 dbaron 2014-05-05 23:45:59 +0000 display-box: contents essentially forces the insertion of one element's child list into its parent, in place of that element, for purposes of figuring out what rendering tree (box tree) to construct. This might make handling of dynamic changes to anything in the child list of the parent more expensive, because the box tree is shaped less like the element tree and we have to disable optimizations that can only work when they look similar. 105217 4 ian 2014-05-06 18:29:19 +0000 Ah, I see. So what we really want is 'display-box: newline' or some such. 109147 5 ian 2014-07-21 21:14:03 +0000 http://krijnhoetmer.nl/irc-logs/whatwg/20140721#l-529 111041 6 ian 2014-09-04 22:06:24 +0000 http://krijnhoetmer.nl/irc-logs/whatwg/20140904#l-890 111042 7 contributor 2014-09-04 22:06:40 +0000 Checked in as WHATWG revision r8745. Check-in comment: Update how 'br' is specced at the CSS level. This depends on as-yet incomplete CSS changes. http://html5.org/tools/web-apps-tracker?from=8744&to=8745