usercss-moz-document.html

Enable keyboard shortcuts

<!DOCTYPE html>

<html>

<head>

<style>

p {

  background-color: red;

.reftest-xdomain {

  background: lime;

</style>

</head>

<body>

<p class="reftest-domain">@-moz-document rules should be applied.</p>

<p class="reftest-xdomain">@-moz-document rules should not be applied.</p>

</body>

</html>