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LibWeb: Resolve grid item vertical margin/padding against CB width

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Percentage vertical margin and padding values are relative to the
containing block *width*, not *height*. This has to be one of the most
commonly recurring mistakes we make :^)
This commit is contained in:
Andreas Kling 2024-01-06 18:35:31 +01:00 • committed by Alexander Kalenik
parent a84778f6ee
commit cc88a2657d
3 changed files with 37 additions and 8 deletions
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19
Tests/LibWeb/Layout/input/grid/grid-item-vertical-padding-and-margin-percentages.html Normal file
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<!doctype html><style>
* {
outline: 1px solid black;
}
body {
display: grid;
width: 500px;
}
div.a {
padding-top: 25%;
margin-top: 10%;
background: pink;
}
div.b {
padding-bottom: 35%;
margin-bottom: 20%;
background: orange;
}
</style><body><div class="a"></div><div class="b"></div>