<!DOCTYPE html>
<html>
<head>
<title>Reference test for bug 86418</title>
</head>
<frameset rows="300px,*">
<frame src="data:text/html,
<style>
div {
width: 50vh;
height: 50vh;
background: #36C;
}</style>
<div></div>
<p>Bug 86418: This tests that on resizing initial containing block vertically,
element with 'vh' length gets resized.</p>
<p>Blue square should be half the height of frame height.</p>
"></frame>
<frame src=""></frame>
</frameset>
</html>