<!DOCTYPE html>
<html>
<body>
<p>
Depending on browser support:<br>
Fixed steps will apply in the input field.
</p>
<form action="action_page.php">
Quantity:
<input type="number" name="points"
min="0" max="100" step="10" value="30">
<input type="submit">
</form>
<p><b>Note:</b>type="number" is not supported in IE9 and earlier.
</p>
</body>
</html>