<!DOCTYPE html>
<html>
<head>
<style>
.hitregion {
width: 100px;
height: 100px;
background-color: green;
}
.hitregion:after {
content: "";
border: 40px solid;
outline: 10px solid;
position: absolute;
width: 0;
height: 0;
margin-left: 140px;
margin-top: 10px;
color: green;
}
</style>
</head>
<body>
<!--
REGRESSION: :hover doesn't work on :after content with borders or outlines.
To test this bug outside DRT, hover on the square below.
This test passes if there are two green squares.
-->
<div class="hitregion"></div>
</body>
</html>