gecko-dev/dom/base/crashtests/1422883.html

11 строки
165 B
HTML

<style>
:after{-webkit-mask:url(#);content:counter(a)}
</style>
<script>
function go(){
a.attachShadow({mode:"closed"})
}
</script>
<body onload=go()>
<h2 id="a">