testing/web-platform/tests/web-animations/responsive/backgroundSize.html
author Lando <lando@lando.test>
Fri, 11 Jul 2025 09:11:47 +0000 (4 hours ago)
changeset 796052 0a0cf87651274d2f86228467e41dafd62a510749
parent 599036 50b1885d1bd195ef648692f97e3313fb01a45e4d
permissions -rw-r--r--
Merge autoland to mozilla-central
<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<div id='container'>
<div id='element'></div>
</div>

<script>
var element = document.getElementById('element');
var container = document.getElementById('container');

test(function() {
    container.style.fontSize = '50px';
    var player = element.animate([{backgroundSize: '300px 30px'}, {backgroundSize: '10em 1em'}], 10);
    player.pause();
    player.currentTime = 5;
    container.style.fontSize = '10px';
    assert_equals(getComputedStyle(element).backgroundSize, '200px 20px');
}, 'Border image width responsive to font size changes');

</script>