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<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<title>The ASR for the opacity item is the root scroll frame instead of the subframe.</title>
<style>
.outer {
/* avoid event regions messing with our demonstration */
pointer-events: none;
/* make sure the .outer opacity item has the root scroll frame as its ASR */
background: rgba(0, 0, 0, 0.1);
}
.opacity {
opacity: 0.8;
}
.scrollFrameWrapper {
/* clips off .scrollFrame's scrollbar */
margin: 100px;
overflow: hidden;
}
.scrollFrame {
height: 300px;
margin-right: -20px;
padding-right: 20px;
overflow: hidden;
}
.scrolledContents {
height: 1000px;
width: 200px;
border: 5px solid black;
pointer-events: auto;
}
</style>
</head><body>
<div class="opacity outer">
<div class="opacity inner">
<div class="scrollFrameWrapper">
<div class="scrollFrame">
<div class="scrolledContents"></div>
</div>
</div>
</div>
</div>
</body></html>