Need some help with the CSS for generating a grid of perfect squares. Div's look like this, but I'd like to have each of them look like a perfect square - not a rectangle. Setting width and height in css doesn't do it. :-\
<div class="square" /> ... <div class="square" /> <div class="linebreak" />
<div class="square" /> ... <div class="square" /> <div class="linebreak" />