Summary: | Zoom level factored into computed value of lh (line-height) unit used in CSS gradient | ||||||
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Product: | WebKit | Reporter: | Dan <dan> | ||||
Component: | CSS | Assignee: | Nobody <webkit-unassigned> | ||||
Status: | NEW --- | ||||||
Severity: | Normal | CC: | Hironori.Fujii, karlcow, koivisto, mmaxfield, simon.fraser, webkit-bug-importer | ||||
Priority: | P2 | Keywords: | BrowserCompat, InRadar | ||||
Version: | Safari Technology Preview | ||||||
Hardware: | Unspecified | ||||||
OS: | Unspecified | ||||||
Attachments: |
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Created attachment 464947 [details] A demonstration of how 1lh changes as you zoom in and out of the page When used in a linear-gradient() CSS image, the computed value of `1lh` incorrectly changes based on zoom level. In the attached test case, the paragraph has these styles: p { line-height: 1.3; font-size: 20px; padding: 1lh; margin: 1lh; border: 1px solid; background-image: linear-gradient( transparent 0 1lh, #fc0 1lh 2lh, transparent 2lh 100% ); } Zooming in and out of the page, the `margin` and `padding` are computed to `26px`, but the background image that highlights the first line of the paragraph gets out of sync. The issue is not present in Chrome 109+.