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<!DOCTYPE html>
<title>anchor-center overflow adjustments (anchored > containing block)</title>
<link rel="help" href="https://www.w3.org/TR/css-anchor-position-1/#anchor-center">
<link rel="help" href="https://www.w3.org/TR/css-align-3/#auto-safety">
<link rel="match" href="anchor-center-overflow-003-ref.html">
<link rel="author" name="Elika J. Etemad" href="http://fantasai.inkedblade.net/contact">
<style>
.container {
width: 80px; height: 80px;
border: solid gray;
margin: 6px;
position: relative;
anchor-scope: --tl, --tr, --br, --bt;
float: left;
}
.anchor {
border: solid;
margin: 16px;
position: absolute;
}
.anchor.tl { anchor-name: --tl; top: 0; left: 0; }
.anchor.tr { anchor-name: --tr; top: 0; right: 0; }
.anchor.bl { anchor-name: --bl; bottom: 0; left: 0; }
.anchor.br { anchor-name: --br; bottom: 0; right: 0; }
.anchored {
width: 80px; height: 80px;
border: solid;
position: absolute;
place-self: anchor-center;
margin: 2px;
inset: 6px;
opacity: 20%; /* the borders will overlap perfectly so this allows checking the whole stack */
}
.anchored.tl { position-anchor: --tl; }
.anchored.tr { position-anchor: --tr; }
.anchored.bl { position-anchor: --bl; }
.anchored.br { position-anchor: --br; }
.tl { border-color: blue; }
.tr { border-color: aqua; }
.bl { border-color: fuchsia; }
.br { border-color: orange; }
body > div { clear: both; }
.mix .anchored.tl { writing-mode: horizontal-tb; direction: rtl; }
.mix .anchored.tr { writing-mode: vertical-rl; direction: ltr; }
.mix .anchored.bl { writing-mode: vertical-lr; direciton: rtl; }
.mix .anchored.br { writing-mode: sideways-lr; direction: ltr; }
</style>
<div class=straight>
<div class=container style="writing-mode: horizontal-tb; direction: ltr">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: horizontal-tb; direction: rtl">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-lr; direction: ltr">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-lr; direction: rtl">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-rl; direction: ltr">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-rl; direction: rtl">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
</div>
<div class=mix>
<div class=container style="writing-mode: horizontal-tb; direction: ltr">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: horizontal-tb; direction: rtl">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-lr; direction: ltr">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-lr; direction: rtl">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-rl; direction: ltr">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
<div class=container style="writing-mode: vertical-rl; direction: rtl">
<div class="anchor tl"></div><div class="anchored tl"></div>
<div class="anchor tr"></div><div class="anchored tr"></div>
<div class="anchor bl"></div><div class="anchored bl"></div>
<div class="anchor br"></div><div class="anchored br"></div>
</div>
</div>
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