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<!doctype html>
<html class=reftest-wait>
<link rel="author" title="Xianzhu Wang" href="mailto:wangxianzhu@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-backface-visibility">
<link rel="match" href="backface-visibility-hidden-animated-ref.html">
<style>
@keyframes show-backface {
0% { transform: rotateY(60deg); }
0.01% { transform: rotateY(180deg); }
100% { transform: rotateY(180deg); }
}
.flip {
animation: 10s linear 0s infinite forwards show-backface;
height: 100px;
width: 100px;
transform: rotateY(60deg);
transform-style: preserve-3d;
}
#back {
background: lightblue;
transform: rotateY(180deg);
position: absolute;
top: 0;
left: 0;
width: 200px;
height: 200px;
backface-visibility: hidden;
}
#posabs {
position: absolute;
/* This is the only difference from backface-visibility-hidden-animated-001.html. */
will-change: transform;
bottom: 0;
right: 0;
background: yellow;
}
</style>
<div id="flip">
<div id="back">
<i id="posabs">Text</i>
</div>
</div>
<script>
onload = () => requestAnimationFrame(() => requestAnimationFrame(() => {
flip.classList.add("flip");
requestAnimationFrame(() => requestAnimationFrame(() =>
document.documentElement.classList.remove("reftest-wait")));
}));
</script>
</html>
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