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<!doctype HTML>
<html>
<meta charset="utf8">
<title>Content Visibility: spacer and a container (reference)</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<style>
.spacer {
width: 150px;
height: 3000px;
background: lightblue;
}
#container {
contain: style layout;
width: 150px;
height: 150px;
}
</style>
<div class="spacer">Test passes if there is no red.</div>
<div id="container"></div>
</html>