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[The spec](http://quirks.spec.whatwg.org/#the-percentage-height-calculation-quirk) applies percentage height quirk only when #22

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t10-13rocket opened this issue Nov 13, 2021 · 0 comments

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t10-13rocket commented Nov 13, 2021

The spec applies percentage height quirk only when

... the specified value for the height property of element is a <percentage>, ...

which means we should apply the quirk for % heights but shouldn't for calc(length + %) heights.

Currently, only Firefox does that. Chrome, EdgeHTML and Safari apply the quirk also on calc() heights.

Should we change the spec to match the behavior of Chrome & Edge & Safari?

Also @bfgeek @bzbarsky @lilles from the related Chromium bug https://crbug.com/388892

Originally posted by @xiaochengh in whatwg/quirks#48

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