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<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: different width container should keep aspect ratio (by default)</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="intrinsic-aspect-ratio-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
.spacer {
height: 10px;
}
.box {
width: 100px;
height: 100px;
contain: paint;
background: blue;
}
#target1 {
view-transition-name: target1;
}
#target2 {
view-transition-name: target2;
}
#hidden {
view-transition-name: hidden;
width: 10px;
height: 10px;
visibility: hidden;
contain: paint;
}
/* We're verifying what we capture, so just display the new contents for 5 minutes. */
html::view-transition-group(*) { animation-duration: 300s; }
html::view-transition-new(*) { animation: unset; opacity: 0; }
html::view-transition-old(*) { animation: unset; opacity: 1; }
html::view-transition-group(target1) {
animation: unset;
width: 50px;
border: 2px solid black;
}
html::view-transition-group(target2) {
animation: unset;
width: 200px;
border: 2px solid black;
}
/* hide the root so we show transition background to ensure we're in a transition */
html::view-transition-group(root) { animation: unset; opacity: 0; }
html::view-transition { background: lightpink; }
</style>
<div id=target1 class=box></div>
<div class=spacer></div>
<div id=target2 class=box></div>
<div id=hidden></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
document.startViewTransition(() => {
requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
});
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>
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