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| spec:css3-grid-layout [2011/12/04 14:43] – mmielke | spec:css3-grid-layout [2011/12/04 15:00] – mmielke |
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| Note also that this change has been [[http://lists.w3.org/Archives/Public/www-style/2011May/0344.html|previously discussed]] on the www-styling mailing list. | Note also that this change has been [[http://lists.w3.org/Archives/Public/www-style/2011May/0344.html|previously discussed]] on the www-styling mailing list. |
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| | ==== Issue 2: ==== |
| | Fractional-track sizing algorithm update |
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| | == Summary: == |
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| | The grid-sizing algorithm introduced in the previous [[http://dev.w3.org/csswg/css3-grid-align|Editor's Draft]] did not define the expected behavior for sizing a fractionally-sized track (e.g. 1fr, 2fr,...) when a Grid Element was shrink-to-fit. This should be addressed so that future implementations of Grid Layout behave predictably across platforms. |
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| | == Proposal: == |
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| | We propose to modify the existing grid sizing algorithm as follows: if the Grid Element is shrink-to-fit, then the algorithm follows its current path. However, if the Grid Element is not shrink-to-fit, then we set the size of a fractional track (i.e. determine the size of a '1fr' track) by making sure that 1) the proportions of all fractional tracks are preserved (e.g. a '1fr' track is half the size of a '2fr' track) and 2) fractional tracks are large enough contain all Grid Items that span them. The specific algorithm updates can be found in step 6 of the updated Editor's Draft. |
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