<!DOCTYPE html>
<html xmlns="
http://www.w3.org/1999/xhtml" class="reftest-wait">
<head>
<script>
customElements.define("custom-element", class extends HTMLElement {
constructor() {
super();
const template = document.getElementById("template");
const shadowRoot = this.attachShadow({mode: "open"})
.appendChild(template.content.cloneNode(true));
}
});
function doTest() {
var l = document.getElementById("l");
l.parentNode.insertBefore(document.createTextNode("x"), l);
document.documentElement.removeAttribute("class");
}
</script>
</head>
<body onload="doTest()">
<template id="template">
<style>
#hasAfter::after { content: "y"; }
#l { display: none; }
</style>
<span id="hasAfter"><slot/></span>
</template>
<custom-element style="font-size: 300%; display:block;"><span id="l"></span></custom-elemen
t>
</body>
</html>
