<!DOCTYPE html><html><head>
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<meta charset="UTF-8" />
<meta name="viewport" content="initial-scale=1,width=device-width" />
<link rel="stylesheet" href="test.css" />
<script src="test.js"></script>
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</head>
<body onload="main()"><header>
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<h1>Tabs</h1>
<input type="checkbox" id="theme" onclick="swap()">Dark</input>
<ul>
<li><a href="test.html">test.html</a></li>
<li><a href="test.html?tab=2/3">test.html?tab=2/3</a></li>
</ul>
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</header><main>
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<div class="tabs">
<input type="radio" id="tab/1" name="tab" onclick="update(id)">
<label for="tab/1">Tab: 1</label>
<div>
<div class="tabs">
<input type="radio" id="tab/1/1" name="tab/1" onclick="update(id)">
<label for="tab/1/1">Tab: 1 / 1</label>
<div>Tab: One / One</div>
<input type="radio" id="tab/1/2" name="tab/1" onclick="update(id)">
<label for="tab/1/2">Tab: 1 / 2</label>
<div>Tab: One / Two</div>
<input type="radio" id="tab/1/3" name="tab/1" onclick="update(id)">
<label for="tab/1/3">Tab: 1 / 3</label>
<div>Tab: One / Three</div>
</div>
</div>
<input type="radio" id="tab/2" name="tab" onclick="update(id)">
<label for="tab/2">Tab: 2</label>
<div>
<div class="tabs">
<input type="radio" id="tab/2/1" name="tab/2" onclick="update(id)">
<label for="tab/2/1">Tab: 2 / 1</label>
<div>Tab: Two / One</div>
<input type="radio" id="tab/2/2" name="tab/2" onclick="update(id)">
<label for="tab/2/2">Tab: 2 / 2</label>
<div>Tab: Two / Two</div>
<input type="radio" id="tab/2/3" name="tab/2" onclick="update(id)">
<label for="tab/2/3">Tab: 2 / 3</label>
<div>Tab: Two / Three</div>
</div>
</div>
</div>
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</main></body></html>