<style> body { background: green; color: white; } document:-webkit-full-screen-document > body { background: red; } span { text-decoration: underline; cursor: hand; } div { background: blue; width: 200px; height: 100px; } div:-webkit-full-screen { width: 100%; height: 100%; } </style> <script> function toggleFullScreen() { if (document.webkitIsFullScreen) document.webkitCancelFullScreen(); else document.getElementsByTagName('div')[0].webkitRequestFullscreen(); } </script> <body> This tests that the page does not have a visible "flash" when finishing the exit full screen animation. <span onclick="toggleFullScreen()">Click to toggle full screen.</span> <div> </div> </body>