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Test Info:

<!DOCTYPE html>
<html>
<head>
<title>CSS Scoping Module Level 1 - slot element without distributed nodes must render its fallback content</title>
<link rel="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"/>
<link rel="match" href="reference/green-box.html"/>
</head>
<body>
<style>
my-host {
display: block;
background-color: red;
width: 100px;
height: 50px;
}
.red {
background-color: red;
}
.green {
background-color: green;
}
div {
width: 100px;
height: 50px;
}
slot {
border: solid 10px red;
}
</style>
<p>Test passes if you see a single 100px by 100px green box below.</p>
<my-host></my-host>
<div class="red"><slot><div class="green"></div></slot></div>
<script>
try {
var shadowHost = document.querySelector('my-host');
shadowRoot = shadowHost.attachShadow({mode: 'open'});
shadowRoot.innerHTML = '<slot style="border: solid 10px red;">'
+ '<div style="width: 100%; height: 100%; background-color: green;"></div></slot>';
} catch (exception) {
document.body.appendChild(document.createTextNode(exception));
}
</script>
</body>
</html>