css/css-scoping/has-slotted-functional-flattened-005.tentative.html

<!doctype html>
<meta charset="utf-8">
<title>:has-slotted(.class) flattened through multiple slots, negative test</title>
<link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
<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 id="ancestor">
    <template shadowrootmode="open">
        <div id="host">
            <template shadowrootmode="open">
                <style>
                    slot {
                        display: block;
                        width: 100px;
                        height: 100px;
                        background-color: green;
                    }
                    :has-slotted(.not-slotted-element) {
                        background-color: red;
                    }
                </style>
              <slot></slot>
            </template>
            <slot></slot>
        </div>
    </template>
    <div class="slotted-element"></div>
</div>