/* javascript pane is actually empty see HTML or just play to see the result */
<a href="#">link 1</a> <a href="#">link 2</a> <a href="#">link 3</a> <div tabindex=0>tabindex=0 (natural order)</div> <a href="#">link 4</a> <a href="#" tabindex=-1>link with tabindex -1 (cannot tab)</a>