<html><head><style> div { width: 100px; height: 100px; background: red; position: relative; animation: mymove 5s infinite; animation-delay: 10s;}@keyframes mymove { from {left: 0px;} to {left: 200px;}}</style></head><body><p>The animation will start 10 seconds after the page has finished loading.</p><p>Click the "Try it" button to reduce the delay of the animation to three seconds.</p><button onclick="myFunction()">Try it</button><script>function myFunction() { document.getElementById("myDIV").style.animationDelay = "3s";}</script><p>Remember that the delay starts counting from when the page has finished loading, not from when you click the button.</p><div id="myDIV"></div></body></html>