<script>
    if (window.testRunner)
        testRunner.dumpAsText();
</script>

<style>
q:before { 
  position: fixed;
  -webkit-animation-name: name1;
  -webkit-animation-duration: 1s;
} 

@-webkit-keyframes name1 {
  from {
    column-width: 10px;
  }
  to {
    column-width: 20px;
  }
}
</style>

<q>PASS if no crash or assert in debug</q>