html - Align <select> combobox vertically? -

i have css style <select> comboboxes:

select { margin: 10px 0 0 40px; min-width: 100px; }

i want align 2 comboboxes vertically. tried following, doesn't work:

<form>    <select>      ...    </select>    <br /> <!-- has no effect -->    <select>      ...    </select> </form>

instead, positioned horizontally. please help!

change css to:

select { margin: 10px 0 0 40px; min-width: 100px; display:block; }

on side note, given code posted above only, should work fine without having use display:block. must have other css causes them inline.

Parth Code