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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of CSS3 background-size Property Animation</title> <style> .animated { width: 300px; height: 175px; background: url("/examples/images/clouds.png") center lightblue; background-size: 25%; -webkit-animation: test 4s infinite; /* Chrome, Safari, Opera */ animation: test 4s infinite; } /* Chrome, Safari, Opera */ @-webkit-keyframes test { 50% {background-size: 125%;} } /* Standard syntax */ @keyframes test { 50% {background-size: 125%;} } </style> </head> <body> <p><strong>Warning:</strong> CSS Animations do not work in Internet Explorer 9 and earlier versions.</p> <p><strong>Note:</strong> The background image size of the following DIV element is animating from its initial value "25%" to "125%", and back to the initial value "25%" again up to infinite times.<p> <div class="animated"></div> </body> </html>
