css/css-nesting/contextually-invalid-selectors-002.html

<!doctype html>
<meta charset="utf-8" />
<title>
    Contextually invalid selectors due to :is() should not match and have no
    specificity
</title>
<link rel="help" href="https://drafts.csswg.org/css-nesting/#nest-selector" />
<link
    rel="match"
    href="/css/reference/ref-filled-green-100px-square-only.html"
/>
<style>
    div {
        color: green;
        background-color: currentColor;
        width: 100px;
        height: 100px;
    }

    p {
        color: initial;
    }

    :is(*, ::before) * {
        color: purple;
    }
</style>

<p>Test passes if there is a filled green square.</p>
<div></div>