<html reftest-async-scroll
	  reftest-async-scroll-x="0"
	  reftest-async-scroll-y="200">
<head>
<style>
.fixedpos {
	transform: translateX(0px);
	position: fixed;
	top: 0;
	width: 100%;
	height: 100px;
	background: red;
}
.filler {
	height: 4000px;
}
</style>
</head>
<body>
<div class="fixedpos"></div>
<div class="filler"></div>
</body>
</html>