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<!DOCTYPE html>
<meta charset="UTF-8">
<title>widows interpolation</title>
<link rel="help" href="https://drafts.csswg.org/css-break-3/#widows-orphans">
<meta name="assert" content="widows supports animation by computed value type">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
.parent {
widows: 30;
}
.target {
widows: 10;
}
</style>
<body></body>
<script>
test_interpolation({
property: 'widows',
from: neutralKeyframe,
to: '20',
}, [
{at: -3, expect: '1'},
{at: -2.5, expect: '1'},
{at: -0.5, expect: '5'},
{at: 0, expect: '10'},
{at: 0.3, expect: '13'},
{at: 0.6, expect: '16'},
{at: 1, expect: '20'},
{at: 1.5, expect: '25'},
]);
test_interpolation({
property: 'widows',
from: 'initial',
to: '20',
}, [
{at: -3, expect: '1'},
{at: -2.5, expect: '1'},
{at: -0.5, expect: '1'},
{at: 0, expect: '2'},
{at: 0.3, expect: '7'},
{at: 0.6, expect: '13'},
{at: 1, expect: '20'},
{at: 1.5, expect: '29'},
]);
test_interpolation({
property: 'widows',
from: 'inherit',
to: '20',
}, [
{at: -3, expect: '60'},
{at: -2.5, expect: '55'},
{at: -0.5, expect: '35'},
{at: 0, expect: '30'},
{at: 0.3, expect: '27'},
{at: 0.6, expect: '24'},
{at: 1, expect: '20'},
{at: 1.5, expect: '15'},
]);
test_interpolation({
property: 'widows',
from: 'unset',
to: '20',
}, [
{at: -3, expect: '60'},
{at: -2.5, expect: '55'},
{at: -0.5, expect: '35'},
{at: 0, expect: '30'},
{at: 0.3, expect: '27'},
{at: 0.6, expect: '24'},
{at: 1, expect: '20'},
{at: 1.5, expect: '15'},
]);
test_interpolation({
property: 'widows',
from: '10',
to: '20'
}, [
{at: -3.0, expect: '1'},
{at: -2.5, expect: '1'},
{at: -0.5, expect: '5'},
{at: 0, expect: '10'},
{at: 0.3, expect: '13'},
{at: 0.6, expect: '16'},
{at: 1, expect: '20'},
{at: 1.5, expect: '25'}
]);
test_interpolation({
property: 'widows',
from: '2',
to: '4'
}, [
{at: -3.0, expect: '1'},
{at: -2.5, expect: '1'},
{at: -0.5, expect: '1'},
{at: 0, expect: '2'},
{at: 0.3, expect: '3'},
{at: 0.6, expect: '3'},
{at: 1, expect: '4'},
{at: 1.5, expect: '5'}
]);
</script>
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