<!-- DO NOT EDIT THIS FILE. Edit the appearance-* file instead and then run: ./tools/appearance-build-webkit-reftests.py --> <!doctype html> <meta charset="utf-8"> <title>CSS Basic User Interface Test: progress dynamic appearance</title> <link rel="help" href="https://drafts.csswg.org/css-ui-4/#appearance-switching"> <link rel="match" href="appearance-progress-bar-002-ref.html"> <style> #progress1 { -webkit-appearance: none } #progress2 { -webkit-appearance: auto } </style> <progress id="progress1" value="0.5"> <progress id="progress2" value="0.5"> <script> document.body.offsetTop; progress1.style.appearance = "auto"; progress2.style.appearance = "none"; </script>