<button onclick="playPause()">Play/Pause</button> <button onclick="makeBig()">Big</button> <button onclick="makeSmall()">Small</button> <button onclick="makeNormal()">Normal</button> <video id="video" width="420"> <source src="Baby-Jane.mp4" type="video/mp4"> <source src="Baby-Jane.ogg" type="video/ogg"> </video> <script> var myVideo = document.getElementById("video"); function playPause() { if (myVideo.paused) myVideo.play(); else myVideo.pause(); } function makeBig() { myVideo.width = 560; } function makeSmall() { myVideo.width = 320; } function makeNormal() { myVideo.width = 420; } </script>