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<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: element in top layer during transition</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:khushalsagar@chromium.org">
<link rel="match" href="dialog-in-top-layer-during-transition-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
#target {
width: 100px;
height: 100px;
background: lightblue;
border: unset;
margin: 0;
padding: 0;
view-transition-name: dialog;
outline: none;
}
#target::backdrop {
width: 100px;
height: 100px;
background: grey;
view-transition-name: backdrop;
}
.hidden {
contain: paint;
width: 10px;
height: 10px;
background: grey;
view-transition-name: hidden;
}
html::view-transition-group(hidden) { animation-duration: 300s; }
html::view-transition-image-pair(hidden) { animation: unset; opacity: 0; }
html::view-transition-group(backdrop) {
position: fixed;
top: 120px;
left: 0;
}
html::view-transition-new(backdrop), html::view-transition-new(dialog) {
opacity: 1;
animation: unset;
}
</style>
<dialog id="target"></dialog>
<div id=hidden class=hidden></div>
<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");
async function runTest() {
const transition = document.startViewTransition(() => {
target.showModal();
target.style.background = "lightgreen";
});
await transition.ready;
takeScreenshot();
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>
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