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<!DOCTYPE html>
<title>Anchors in nested multicol</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#propdef-anchor-name">
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#anchor-pos">
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#anchor-size">
<link rel="author" href="mailto:kojii@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script src="support/test-common.js"></script>
<style>
.cb {
position: relative;
border-style: solid;
border-width: 3px 2px 4px 1px;
padding: 3px 2px 4px 1px;
}
.columns {
column-count: 4;
column-fill: auto;
column-gap: 10px;
column-width: 150px;
width: 630px;
height: 100px;
}
.columns .columns {
column-count: 2;
column-width: 60px;
width: 130px;
height: 200px;
}
.spacer {
background: pink;
}
.anchor1 {
anchor-name: --a1;
margin-left: 10px;
width: 20px;
height: 150px;
background: blue;
}
.target {
position: absolute;
left: anchor(--a1 left);
top: anchor(--a1 top);
width: anchor-size(--a1 width);
height: anchor-size(--a1 height);
background: lime;
opacity: .3;
}
</style>
<body onload="checkLayoutForAnchorPos('.target')">
<p>The green box should be a union of blue boxes,
and the purple box should be at the right-bottom of the green box.
</p>
<div class="cb">
<div class="spacer" style="height: 10px"></div>
<div class="columns">
<div class="cb">
<div class="spacer" style="height: 110px"></div>
<div class="columns">
<div class="cb">
<div class="spacer" style="height: 60px"></div>
<div class="anchor1"></div>
<div class="spacer" style="height: 80px"></div>
<div class="target"
data-offset-x=11 data-offset-y=-19
data-expected-width=180 data-expected-height=100></div>
</div>
</div>
<div class="target"
data-offset-x=13 data-offset-y=97
data-expected-width=180 data-expected-height=100></div>
</div>
</div>
<div class="target"
data-offset-x=175 data-offset-y=13
data-expected-width=180 data-expected-height=100></div>
</div>
</body>
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