<!DOCTYPE html> <meta charset="utf-8"> <title>CSS Animations Test: @keyframes - negative percentage and higher than 100%</title> <link rel="author" title="Intel" href="http://www.intel.com"> <link rel="reviewer" title="Zhiqiang Zhang" href="mailto:zhiqiang.zhang@intel.com"> <!-- 2015-05-06 --> <link rel="help" href="https://drafts.csswg.org/css-animations-1/#animation-name"> <link rel="help" href="https://drafts.csswg.org/css-animations-1/#animation-duration"> <link rel="help" href="https://drafts.csswg.org/css-animations-1/#keyframes"> <meta name="flags" content="animated"> <meta name="assert" content="Check that a keyframe selector specifies negative percentage values or values higher than 100%, the keyframe will be ignored."> <style> div { animation-name: sample; animation-duration: 10s; background-color: blue; height: 100px; width: 100px; } @keyframes sample { -100% { background-color: red; } 0% { background-color: blue; } 30% { background-color: green; } 65% { background-color: yellow; } 100% { background-color: blue; } 200% { background-color: red; } } </style> <body> <p> Test passes if there is a filled blue square with 'Filler Text' initially on page load, if the color of the square gradully changes in order: BLUE to GREEN to YELLOW and back to BLUE in 10 seconds, and if there is no red. </p> <div>Filler Text</div> </body>