<style>
div { width: 0px; }
span { text-decoration: underline; cursor: hand; }
</style>
<script>
function toggleFullScreen() {
if (document.webkitIsFullScreen)
document.webkitCancelFullScreen();
else
document.getElementsByTagName('div')[0].webkitRequestFullscreen();
}
</script>
<body>
This tests that an element with a 0px width will not cause the window to disappear when entering full screen. <span onclick="toggleFullScreen()">Click to toggle full screen.</span>
<div>
</div>
</body>