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<!DOCTYPE html>
<html reftest-async-scroll>
<meta charset="utf-8">
<title>Active opacity should be rendered if it's inside the display port, even if it's currently offscreen</title>
<style>
.scrollbox {
border: 1px solid black;
width: 200px;
height: 200px;
overflow: scroll;
scrollbar-width: none;
}
.scrolledContent {
height: 1000px;
}
.opacity {
will-change: opacity;
opacity: 0.5;
margin-top: 250px;
width: 100px;
height: 100px;
box-sizing: border-box;
border: 1px solid blue;
}
</style>
<div class="scrollbox"
reftest-displayport-x="0" reftest-displayport-y="0"
reftest-displayport-w="200" reftest-displayport-h="1000"
reftest-async-scroll-x="0" reftest-async-scroll-y="150">
<div class="scrolledContent">
<div class="opacity"></div>
</div>
</div>
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