How to change the width of select box

Question

How to change the width of select box in jquery or in html?

Answer 1

In HTML

<select name="foo" style="width:30px;">
    <option>one</option>
    <option>two</option>
    <option>three</option>
</select> 

In Jquery

$('#Id').width(30);

Answer 2

use css().

$('select').css({'width': 200});