<!DOCTYPE html>
<html>
<body>
<input placeholder=placeholder style="visibility:hidden"> <br>
<input placeholder=placeholder style="display:none"> <br>
<input placeholder=placeholder style="opacity:0"> <br>
<textarea placeholder=placeholder style="visibility:hidden"></textarea> <br>
<textarea placeholder=placeholder style="display:none"></textarea> <br>
<textarea placeholder=placeholder style="opacity:0"></textarea> <br>

<input placeholder=placeholder id=i>
<script>
document.getElementById('i').style.visibility = 'hidden';
</script>
</body>
</html>
