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<html><head><style> div { width: 100px; height: 100px; background: red; position: relative; animation: mymove 5s infinite;}@keyframes mymove { 0% {top: 0px; background: red; width: 100px;} 100% {top: 200px; background: yellow; width: 300px;}}</style></head><body><h1>The @keyframes Rule</h1><div></div></body><!-- Mirrored from www.w3schools.com/cssref/tryit.php?filename=trycss3_keyframes3 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:37:11 GMT --></html>