<html>
<head></head>
<body>
<div>Start</div>
<div tabindex="0">Focus me 1</div>
<div tabindex="0" aria-roledescription="kill switch">Focus me 2</div>
<div tabindex="0" role="button">Focus me 3</div>
<div tabindex="0" role="button" aria-roledescription="kill switch">Focus me 4</div>
<button>Focus me 5</button>
<button aria-roledescription="kill switch">Focus me 6</button>
<div tabindex="0" role="group" aria-label="Presentation" aria-roledescription="slide set">
<p>Here are some slides</p>
<div tabindex="0" role="region" aria-roledescription="slide" id="slide1" aria-labelledby="slide1heading">
<h1 id="slide1heading">First Quarter 2015</h1>
<ul>
<li>Item 1</li>
<li>Item 2</li>
</ul>
</div>
<div tabindex="0" aria-roledescription="slide" id="slide1" aria-labelledby="slide2heading">
<h1 id="slide2heading">Second Quarter 2015</h1>
<ul>
<li>Item 3</li>
<li>Item 4</li>
</ul>
</div>
</div>
<div>End</div>
</body>
</html>