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<!DOCTYPE html>
<meta charset="utf-8">
<meta name="assert" content="Position-visibility: anchors-visible should hide an element and stacked children with an out-of-view anchor." />
<title>CSS Anchor Positioning Test: position-visibility: anchors-visible</title>
<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#position-visibility">
<link rel="match" href="position-visibility-anchors-visible-ref.html">
<style>
#scroll-container {
overflow: hidden scroll;
width: 300px;
height: 100px;
}
#anchor {
anchor-name: --a1;
width: 100px;
height: 100px;
background: orange;
}
#spacer {
height: 100px;
}
#target {
position-anchor: --a1;
position-visibility: anchors-visible;
inset-area: bottom right;
width: 100px;
height: 100px;
background: red;
position: absolute;
top: 0;
left: 0;
}
#stacking-child {
/* stacking context */
z-index: 1;
width: 100px;
height: 100px;
background: maroon;
position: absolute;
top: 25px;
left: 25px;
}
</style>
<div id="scroll-container">
<div id="anchor">anchor</div>
<div id="spacer"></div>
<div id="target">target
<div id="stacking-child"></div>
</div>
</div>
<script>
const scroller = document.getElementById('scroll-container');
scroller.scrollTop = 100;
// #target should not be visible because #anchor is scrolled out of view.
</script>
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