|  | <!DOCTYPE html> | 
|  | <html class=reftest-wait> | 
|  | <title>View transitions: writing mode on a container</title> | 
|  | <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/"> | 
|  | <link rel="author" href="mailto:vmpstr@chromium.org"> | 
|  | <link rel="match" href="writing-mode-container-resize-ref.html"> | 
|  | <script src="/common/reftest-wait.js"></script> | 
|  |  | 
|  | <style> | 
|  | #target { | 
|  | view-transition-name: target; | 
|  | background: lightblue; | 
|  | width: 100px; | 
|  | height: 100px; | 
|  | } | 
|  | .vertical { | 
|  | writing-mode: vertical-lr; | 
|  | } | 
|  | ::view-transition-group(root) { | 
|  | visibility: hidden; | 
|  | animation-duration: 500s; | 
|  | } | 
|  | ::view-transition-old(target) { | 
|  | animation: unset; | 
|  | opacity: 1; | 
|  | } | 
|  | ::view-transition-new(target) { | 
|  | animation: unset; | 
|  | opacity: 0; | 
|  | } | 
|  | ::view-transition-group(target) { | 
|  | height: 50px; | 
|  | border: 1px solid black; | 
|  | animation: unset; | 
|  | } | 
|  | ::view-transition { | 
|  | background: pink; | 
|  | } | 
|  | </style> | 
|  |  | 
|  | <div id=target class=vertical></div> | 
|  |  | 
|  | <script> | 
|  | failIfNot(document.startViewTransition, "Missing document.startViewTransition"); | 
|  |  | 
|  | function runTest() { | 
|  | const transition = document.startViewTransition(() => target.remove()); | 
|  | transition.ready.then(takeScreenshot); | 
|  | } | 
|  |  | 
|  | onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest)); | 
|  | </script> |