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<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-anchor-1/#anchor-pos">
<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-bottom: 2px solid gray;
}
.not-positioned-cb {
transform: translate(0, 0); /* Make it a containing block. */
}
.margins { margin: 5px 6px 7px 8px; }
.borders { border-width: 5px 6px 7px 8px; border-style: solid; }
.paddings { padding: 5px 6px 7px 8px; }
.spacer {
height: 9px;
}
.anchor1 {
anchor-name: --a1;
margin-left: 50px;
width: 31px;
height: 31px;
background: blue;
}
.target {
position: absolute;
left: anchor(--a1 left);
right: anchor(--a1 right);
top: anchor(--a1 top);
bottom: anchor(--a1 bottom);
background: orange;
}
</style>
<body onload="checkLayoutForAnchorPos('.target')">
<!-- Margins/borders/paddings on the containing block. -->
<div class="cb margins">
<div class="spacer"></div>
<div class="anchor1"></div>
<div class="target"
data-offset-x=50 data-offset-y=9
data-expected-width=31 data-expected-height=31></div>
</div>
<div class="cb borders">
<div class="spacer"></div>
<div class="anchor1"></div>
<div class="target"
data-offset-x=50 data-offset-y=9
data-expected-width=31 data-expected-height=31></div>
</div>
<div class="cb paddings">
<div class="spacer"></div>
<div class="anchor1"></div>
<div class="target"
data-offset-x=58 data-offset-y=14
data-expected-width=31 data-expected-height=31></div>
</div>
<!-- Margins/borders/paddings on the nested containing block. -->
<div class="cb">
<div class="spacer"></div>
<div class="not-positioned-cb margins">
<div class="anchor1"></div>
</div>
<div class="target"
data-offset-x=58 data-offset-y=14
data-expected-width=31 data-expected-height=31></div>
</div>
<div class="cb">
<div class="spacer"></div>
<div class="not-positioned-cb borders">
<div class="anchor1"></div>
</div>
<div class="target"
data-offset-x=58 data-offset-y=14
data-expected-width=31 data-expected-height=31></div>
</div>
<div class="cb">
<div class="spacer"></div>
<div class="not-positioned-cb paddings">
<div class="anchor1"></div>
</div>
<div class="target"
data-offset-x=58 data-offset-y=14
data-expected-width=31 data-expected-height=31></div>
</div>
<!-- Margins/borders/paddings on the anchor. -->
<div class="cb">
<div class="spacer"></div>
<div class="anchor1 margins"></div>
<div class="target"
data-offset-x=50 data-offset-y=14
data-expected-width=31 data-expected-height=31></div>
</div>
<div class="cb">
<div class="spacer"></div>
<div class="anchor1 borders"></div>
<div class="target"
data-offset-x=50 data-offset-y=9
data-expected-width=45 data-expected-height=43></div>
</div>
<div class="cb">
<div class="spacer"></div>
<div class="anchor1 paddings"></div>
<div class="target"
data-offset-x=50 data-offset-y=9
data-expected-width=45 data-expected-height=43></div>
</div>
<!-- Margins/borders/paddings on the querying element. -->
<div class="cb">
<div class="spacer"></div>
<div class="anchor1"></div>
<div class="target margins"
data-offset-x=58 data-offset-y=14
data-expected-width=17 data-expected-height=19></div>
</div>
<div class="cb">
<div class="spacer"></div>
<div class="anchor1"></div>
<div class="target borders"
data-offset-x=50 data-offset-y=9
data-expected-width=31 data-expected-height=31></div>
</div>
<div class="cb">
<div class="spacer"></div>
<div class="anchor1"></div>
<div class="target paddings"
data-offset-x=50 data-offset-y=9
data-expected-width=31 data-expected-height=31></div>
</div>
</body>
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