Diretivo número HTML
<select id="selectNumber">
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
SmokeFrog
<select id="selectNumber">
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>