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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id='container'>
    <div id='element'></div>
</div>
<script>

var container = document.getElementById('container');
var element = document.getElementById('element');

test(function() {
    var keyframes = [
        {fontWeight: 'bolder'},
        {fontWeight: 'bolder'}
    ];

    container.style.fontWeight = '100';
    var player = element.animate(keyframes, 10);
    player.pause();
    player.currentTime = 5;
    fontWeight = getComputedStyle(element).fontWeight;
    container.style.fontWeight = '800';
    assert_not_equals(getComputedStyle(element).fontWeight, fontWeight);
}, 'Relative font weight bolder responsive to style changes');

test(function() {
    var keyframes = [
        {fontWeight: 'lighter'},
        {fontWeight: 'lighter'}
    ];

    container.style.fontWeight = '900';
    var player = element.animate(keyframes, 10);
    player.pause();
    player.currentTime = 5;
    fontWeight = getComputedStyle(element).fontWeight;
    container.style.fontWeight = '200';
    assert_not_equals(getComputedStyle(element).fontWeight, fontWeight);
}, 'Relative font weight lighter responsive to style changes');

</script>