<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Animation of left property</title> <style> div { position: relative; left: 100px; height: 200px; width: 200px; background-color: #9bb; -webkit-animation-name: bounce; -webkit-animation-duration: 2s; -webkit-animation-iteration-count: infinite; -webkit-animation-direction: alternate; -webkit-animation-timing-function: ease-in-out; } @-webkit-keyframes bounce { from { left: 100px; } to { left: 300px; } } </style> </head> <body> <h1>Animation of 'left' property</h1> <p>The element below should bounce 200 pixels left and right continuously</p> <div id="target"> This element should animate. </div> </body> </html>