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<!DOCTYPE html>
<link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#flex-base-size">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#algo-cross-item">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<meta name="flags" content="" />
<meta name="assert" content="A column flex container shrink wraps items both when determining their flex base sizes and when laying them out after their flexed size has been determined." />
<style>
x-flexbox {
display: flex;
flex-direction: column;
}
x-item {
display: block;
background: red;
/* Override default alignment of "stretch" because items don't shrink to fit
when they are stretched. */
align-self: start;
}
#mainSizeDependsOnCrossSize {
padding-bottom: 50%;
background: green;
}
#widthSetter {
width: 100px;
height: 50px;
background: green;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<x-flexbox>
<x-item> <!-- If fit-content is skipped when determining flex base size, this item gets a main size of 50px + 100vw / 2. -->
<div id=widthSetter></div>
<div id=mainSizeDependsOnCrossSize></div>
</x-item>
</x-flexbox>
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