浮动压缩版:左

I have what seems like a simple problem, but i have yet to find a solution. I have a series of divs which may vary in height, thought they will generally be the same width. I would like a fluid layout that basically ends up generating a variable number of columns as the page is resized. Perfect for float left. The problem is that when the divs are different heights, there ends up being a lot of white space vertically between the elements.I have what seems like a simple problem, but i