servo/tests/wpt/css-tests/css-animations-1_dev/html/animation-fill-mode-003.htm

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<!DOCTYPE html>
<html><head><meta charset="utf-8">
<title>CSS Animations Test: animation-fill-mode - backwards</title>
<link href="http://www.intel.com" rel="author" title="Intel">
<link href="mailto:zhiqiang.zhang@intel.com" rel="reviewer" title="Zhiqiang Zhang"> <!-- 2015-05-07 -->
<link href="https://drafts.csswg.org/css-animations-1/#animation-name" rel="help">
<link href="https://drafts.csswg.org/css-animations-1/#animation-duration" rel="help">
<link href="https://drafts.csswg.org/css-animations-1/#animation-delay" rel="help">
<link href="https://drafts.csswg.org/css-animations-1/#animation-fill-mode" rel="help">
<meta content="animated" name="flags">
<meta content="When animation-fill-mode is set to backwards,
animation-delay is set a positive time offset,
and animation-direction is 'normal' or 'alternate-reverse',
animation will apply the from or 0% keyframe
that will start the first iteration." name="assert">
<style>
div {
animation-name: sample;
animation-duration: 5s;
animation-delay: 5s;
animation-fill-mode: backwards;
background-color: blue;
height: 100px;
width: 100px;
position: relative;
}
@keyframes sample {
from {
background-color: yellow;
}
to {
background-color: green;
}
}
</style>
</head><body>
<p>
Test passes if there is a filled color square with 'Filler Text',
whose color gradually changes in the order:
YELLOW to GREEN to BLUE.
</p>
<div>Filler Text</div>
</body></html>