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<!DOCTYPE html>
<meta charset="UTF-8">
<title>margin interpolation</title>
<link rel="help" href="https://www.w3.org/TR/CSS2/box.html#margin-properties">
<meta name="assert" content="margin supports animation">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
.parent {
margin: 10px;
border: solid;
display: inline-block;
}
.target {
width: 40px;
height: 40px;
background-color: black;
display: inline-block;
margin: 30px;
opacity: 0.5;
}
.expected {
background-color: green;
}
</style>
<body>
<template id="target-template">
<div>
<div class="target"></div>
</div>
</template>
<script>
test_interpolation({
property: 'margin',
from: neutralKeyframe,
to: '20px',
}, [
{at: -0.3, expect: '33px'},
{at: 0, expect: '30px'},
{at: 0.3, expect: '27px'},
{at: 0.6, expect: '24px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '15px'},
]);
test_interpolation({
property: 'margin',
from: 'initial',
to: '20px',
}, [
{at: -0.3, expect: '-6px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '6px'},
{at: 0.6, expect: '12px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '30px'},
]);
test_interpolation({
property: 'margin',
from: 'inherit',
to: '20px',
}, [
{at: -0.3, expect: '7px'},
{at: 0, expect: '10px'},
{at: 0.3, expect: '13px'},
{at: 0.6, expect: '16px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '25px'},
]);
test_interpolation({
property: 'margin',
from: 'unset',
to: '20px',
}, [
{at: -0.3, expect: '-6px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '6px'},
{at: 0.6, expect: '12px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '30px'},
]);
test_interpolation({
property: 'margin',
from: '0px',
to: '10px'
}, [
{at: -0.3, expect: '-3px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '3px'},
{at: 0.6, expect: '6px'},
{at: 1, expect: '10px'},
{at: 1.5, expect: '15px'}
]);
test_interpolation({
property: 'margin',
from: '20px 40px 60px 80px',
to: '30px 50px 70px 90px'
}, [
{at: -0.3, expect: '17px 37px 57px 77px'},
{at: 0, expect: '20px 40px 60px 80px'},
{at: 0.3, expect: '23px 43px 63px 83px'},
{at: 0.6, expect: '26px 46px 66px 86px'},
{at: 1, expect: '30px 50px 70px 90px'},
{at: 1.5, expect: '35px 55px 75px 95px'}
]);
</script>
</body>
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