fieldset-dynamic-valid.html
<!DOCTYPE html>
<!-- fieldset with one valid element which is made valid dynamically -->
<html>
<head>
<style>
fieldset:valid {display: none;}
</style>
</head>
<script>
function onloadHandler()
{
document.getElementById('i').value = 'foo';
document.documentElement.className = '';
}
</script>
<body onload="onloadHandler();">
<fieldset id="fieldset">
<input id='i' required>
</fieldset>
</body>
</html>
