<!doctype html>
<meta charset="utf-8">
<title>:has() works on featureless elements *if* the rest of the selector does too</title>
<link rel="help" href="https://drafts.csswg.org/selectors-4/#featureless">
<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
<p>Test passes if there is a filled green square.</p>
<div class=host>
<template shadowrootmode="open">
<style>
div {
width: 100px;
height: 50px;
}
.red { background-color: red; }
.green { background-color: green; }
:host:has(.t1) .t1 {
background-color: green;
}
:has(.t2) .t2 {
background-color: red;
}
</style>
<div class="red t1"></div>
<div class="green t2"></div>
<slot></slot>
</template>
<section></section>
</div>