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-webkit-background-size has behavioural differences to background-size #28

alancutter opened this issue Jan 15, 2016 · 2 comments


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@alancutter alancutter commented Jan 15, 2016

-webkit-background-size is listed as a simple alias for background-size when it has different syntactic behaviour.
-webkit-background-size: 10px is equivalent to background-size: 10px 10px.
background-size: 10px is equivalent to background-size: 10px auto (see

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@miketaylr miketaylr commented Jan 15, 2016

Excellent feedback, thanks.

miketaylr added a commit that referenced this issue Jan 16, 2016
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@zcorpan zcorpan commented Mar 6, 2020

Should this property always be serialized with two values, so that it can roundtrip with both the prefixed and unprefixed variants?


Result in chrome

log: getting .style
log: 10px
log: setting .style to gCS
log: 10px
log: getting .style again
log: 10px 10px
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