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Test Info:

<!DOCTYPE html>
<html style="writing-mode:vertical-rl;">
<body>
<input type="number" style="-moz-appearance:none; height:200px;" value="123">
<!-- div to cover spin box area -->
<div style="position:absolute; background-color:black; width:100px; height:200px; top:100px; right:0px;">
</body>
</html>