On Wednesday 2016-12-21 14:45 -0800, Bradley Werth wrote: > Summary: CSS Box Alignment is broadly available for css-flex containers, > and will soon be available for css-grid containers. Web developers who are > using flex containers to take advantage of "justify-content" or > "align-content" will appreciate being able to apply those styles on block > containers also. Implementing this now will help diminish future web > compatibility problems if site owners are overapplying these styles to > block containers and are expecting continued no-op behavior. > Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1105571 > Link to standard: https://drafts.csswg.org/css-align/#overview > Platform coverage: Desktop and Android > Estimated or target release: TBD > Preference behind which this will be implemented: > layout.css.block-align.enabled > DevTools bug: TBD > Do other browser engines implement this? Chrome positive signals: > https://bugs.chromium.org/p/chromium/issues/detail?id=226252 > Tests: TBD tests added to > http://test.csswg.org/suites/css-align-3_dev/nightly-unstable/html/chapter-4.htm
It's good to see this happening. I think it's important to do because it the CSS Working Group's current plan to address some very common developer complaints about CSS, such as "can't do vertical centering". These are already addressed for flex and grid, because these properties apply to flex and grid already, and this work will make them apply to blocks as well. However, it does have some Web-compatibility risk, because we and other browsers have already been shipping these properties for a while for flex and grid, so sites might be using them and starting to depend on the fact that they *don't* work on blocks. I'm happy to see this happen sooner rather than later, to reduce this risk. -David -- 𝄞 L. David Baron http://dbaron.org/ 𝄂 𝄢 Mozilla https://www.mozilla.org/ 𝄂 Before I built a wall I'd ask to know What I was walling in or walling out, And to whom I was like to give offense. - Robert Frost, Mending Wall (1914)
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