<!DOCTYPE html>
<html lang="en">
<body>
<div role="grid">
<div role="row">
<span role="columnheader">Header 1</span>
<span role="columnheader">Header 2</span>
</div>
<div role="row">
<span role="gridcell">Cell 1</span>
<span role="gridcell">Cell 2</span>
</div>
</div>
</body>
</html>