I\'ve viewed a dozen questions and answers to this issue, but there doesn\'t seem to be a single best answer for my situation.
I\'ve got a page (http://awesomealbums
Use a negative margin'hack'.
Give each column a margin-bottom of -9999 and a padding-bottom of 9999, and a height of 100%. I'm not sure if that is the right way round or not though. But the idea is that as one container expands, the others will also all expand due to the 100% height, the padding and margin work such that the margin is hidden outside the 100% height - Google for 'negative margin columns'.
Alterantivly use css-discuss to see all the industry recognised ways to build 3 column layouts, there are fluid examples - http://css-discuss.incutio.com/wiki/Three_Column_Layouts