<style type="text/css">
html:before, html:after {
content: "";
width: 50px;
height: 50px;
position: fixed;
}
html:before {
border: solid red 5px;
}
html:after {
border: solid green 5px;
top: 60px;
}
</style>
<p>
Test of crash when context-clicking on generated content.
Do a control-click or a right-click in one of these two
boxes, and make sure you don't see a crash.
</p>