0pt;
  margin-right: 20px;
  margin-bottom: 30px;
  color: green;
  text-shadow: 10px 30px 10px orange;
}

.expected {
  margin-right: 40px;
}
</style>
<body>
<template id="target-template">T</template>
<script>
test_interpolation({
  property: 'text-shadow',
  from: neutralKeyframe,
  to: 'green 20px 20px 20px',
}, [
  {at: -0.3, expect: 'rgb(255, 176, 0) 7px 33px 7px'},
  {at: 0, expect: 'rgb(255, 165, 0) 10px 30px 10px'},
  {at: 0.3, expect: 'rgb(179, 154, 0) 13px 27px 13px'},
  {at: 0.6, expect: 'rgb(10