<!DOCTYPE html> | |
<html> | |
<head> | |
<style> | |
.container { | |
position: absolute; | |
width: 300px; | |
height: 300px; | |
border: 1px solid black; | |
} | |
.box { | |
position: absolute; | |
width: 200px; | |
height: 200px; | |
} | |
.bottom { | |
left: 0px; | |
top: 0px; | |
background-color: orange; | |
} | |
.top { | |
left: 100px; | |
top: 100px; | |
background-color: green; | |
animation: fade-out 30ms forwards; | |
} | |
@keyframes fade-out { | |
0% { | |
opacity: 1; | |
} | |
100% { | |
z-index: -1; | |
opacity: 0.8; | |
} | |
} | |
</style> | |
<script> | |
if (window.testRunner) | |
testRunner.waitUntilDone(); | |
window.addEventListener('load', () => { | |
document.getElementById('tester').addEventListener('animationend', () => { | |
if (window.testRunner) | |
testRunner.notifyDone(); | |
}, false); | |
}, false); | |
</script> | |
</head> | |
<body> | |
<div class="container"> | |
<div class="bottom box"></div> | |
<div id="tester" class="top box"></div> | |
</div> | |
</body> | |
</html> |