| <!DOCTYPE html> | 
 | <meta charset="utf-8"> | 
 | <title>PNG Third Edition: animated PNG, plays</title> | 
 | <link rel="author" title="Chris Lilley" href="mailto:chris@w3.org"> | 
 | <link rel="help" href="https://www.w3.org/TR/png-3/#apng-frame-based-animation"> | 
 | <link rel="help" href="https://www.w3.org/TR/png-3/#fcTL-chunk"> | 
 | <meta name="assert" content="num_plays indicates the number of times that this animation should play. If nonzero, the animation should come to rest on the final frame at the end of the last play."> | 
 | <style> | 
 |     .test { | 
 |         width: 128px; | 
 |         height: 64px; | 
 |         background-color: white; | 
 |         background-image: | 
 |         linear-gradient(45deg, #ccc 25%, transparent 25%), | 
 |         linear-gradient(-45deg, #ccc 25%, transparent 25%), | 
 |         linear-gradient(45deg, transparent 75%, #ccc 75%), | 
 |         linear-gradient(-45deg, transparent 75%, #ccc 75%); | 
 |         background-size: 16px 16px; | 
 |         background-position: 0 0, 0 8px, 8px -8px, -8px 0px; | 
 |     } | 
 | </style> | 
 | <body> | 
 |     <p>Test passes if this flashes yellow for one second, then stays blue forever</p> | 
 |     <div class="test"><img src="../support/031.png" alt=""></div> | 
 | </body> |