<!DOCTYPE html>
<body style='margin: 0px'>
<div style='background-color: green; width: 100px; height: 100px'></div>
<div>This tests ensures that themed scrollbars are clipped to their iframe. You should see a green box above.</div>
<iframe style='position: absolute; top: 100px; left: 100px;' width="1" height="1" srcdoc='
<html><head><style>
html,body { width:200px; height:100px;}
::-webkit-scrollbar { height: 200px; width: 200px; }
::-webkit-scrollbar-corner { background-color: red; }
</style>'>