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<!DOCTYPE html>
<meta charset="utf-8">
<title>HTMLOptGroupElement Test: disabled</title>
<meta name="flags" content="interact">
<form>
<select>
<optgroup label="8.01" disabled>
<option value="8.01.1">Lecture 01: Powers of Ten</option>
<option value="8.01.2">Lecture 02: 1D Kinematics</option>
<option value="8.01.3">Lecture 03: Vectors</option>
</optgroup>
<optgroup label="8.02">
<option value="8.02.1">Lecture 01: What holds our world together?</option>
<option value="8.02.2">Lecture 02: Electric Field</option>
<option value="8.02.3">Lecture 03: Electric Flux</option>
</optgroup>
</select>
</form>
<h2>Description</h2>
<p>
This test validates that an optgroup element is disabled if its disabled attribute is present.
</p>
<h2>Test steps:</h2>
<ol>
<li>
Click the select flag to select section '8.01'
</li>
</ol>
<h2>Result:</h2>
<p>Click the select flag and try to select section 8.01, test passes if the section 8.01 is disable to be selected</p>