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<!DOCTYPE html>
<html>
<head>
<style>
div {
min-height: 10px; min-width: 10px;
border: 1px solid red;
margin: 10px;
}
#pseudo-container::before {
content: 'before';
}
#pseudo-container::after {
content: 'after';
}
</style>
</head>
<body>
<article id="i1">
<div id="i11">
<div id="i111">
<div id="i1111">
</div>
</div>
</div>
</article>
<article id="i2">
<div id="i21">
<div id="i211">
<div id="i2111">
</div>
</div>
</div>
<div id="i22">
<div id="i221">
</div>
<div id="i222">
<div id="i2221">
<div id="i22211">
</div>
</div>
</div>
</div>
</article>
<article id="i3">
<link id="i31" />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
<link />
</article>
<div id='pseudo-container'></div>
<!-- This is a comment node -->
<svg id="vector" viewBox="0 0 10 10">
<clipPath id="clip">
<rect id="rectangle" x="0" y="0" width="10" height="5"></rect>
</clipPath>
<circle cx="5" cy="5" r="5" fill="blue" clip-path="url(#clip)"></circle>
</svg>
</body>
</html>