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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-break/flexbox/multi-line-column-flex-fragmentation-040.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>
Multi-line column flex fragmentation: Negative margins.
</title>
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<style>
#flex {
display: flex;
flex-direction: column;
flex-wrap: wrap;
height: 500px;
}
#flex > div {
height: 100px;
width: 10px;
}
#flex > div:nth-child(odd) {
background: green;
margin-top: -100px;
break-before: column;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="height: 100px; width: 100px; background: red; position: absolute">
<div style="position: absolute; left: 10px; width: 10px; height: 100px; background: green;"></div>
<div style="margin-top: 100px; width: 100px; height: 100px; columns: 5; column-gap: 0; column-fill: auto;">
<div id="flex">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div style="background: white;"></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
</div>
</div>