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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 = [
        {offsetRotate: 'inherit'},
        {offsetRotate: 'auto 200deg'}
    ];

    container.style.offsetRotate = 'auto 100deg';
    var player = element.animate(keyframes, 10);

    player.pause();
    player.currentTime = 5;
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 150deg');

    container.style.offsetRotate = '400deg';
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 200deg');

    container.style.offsetRotate = '400deg auto';
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 300deg');

    container.style.offsetRotate = '800deg auto';
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 500deg');

    container.style.offsetRotate = '400deg';
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 200deg');

    container.style.offsetRotate = '800deg auto';
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 500deg');

    container.style.offsetRotate = '400deg auto';
    assert_equals(getComputedStyle(element).offsetRotate, 'auto 300deg');
}, 'offsetRotate responsive to inherited offsetRotate changes');
</script>