<!DOCTYPE html>
<style>
  body {
    animation-name: a0;
    animation-duration: 100ms
  }
  @keyframes a0 {
    10% {
      scale: 1
    }
    11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 100% {
      background: blue
    }

  }
</style>
<script>
  onload = () => {
    if (window.testRunner)
      testRunner.dumpAsText();
    console.log("This test passes if it does not crash.");
  }
</script>