| <!DOCTYPE html> |
| <title>View transitions: prerender navigation helper</title> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/"> |
| <link rel="author" href="mailto:vmpstr@chromium.org"> |
| <script src="/speculation-rules/prerender/resources/utils.js"></script> |
| <style> |
| @view-transition { navigation: auto; } |
| html { background: red; } |
| div { |
| width: 200px; |
| height: 200px; |
| background: red; |
| color: black; |
| position: absolute; |
| top: 40px; |
| right: 8px; |
| view-transition-name: target; |
| } |
| ::view-transition { |
| background: lightblue; |
| } |
| ::view-transition-group(root) { |
| visibility: hidden; |
| animation-duration: 500s; |
| } |
| ::view-transition-group(target) { |
| animation-play-state: paused; |
| } |
| ::view-transition-new(target) { |
| animation: unset; |
| opacity: 1; |
| } |
| ::view-transition-old(target) { |
| animation: unset; |
| opacity: 0; |
| } |
| </style> |
| <div id=target> |
| There should be a green square on the left side of the screen, |
| on a field of lightblue. There should be no red in the final state. |
| </div> |
| <script> |
| if (document.prerendering) { |
| target.style.background = "green"; |
| } |
| const channel = new PrerenderChannel('prerender-channel'); |
| channel.postMessage('loaded!'); |
| </script> |
