Reply To: How to make sidebars move below content

[jurotek]

remember floats operate in source order so if the have a sidebar on the left you can’t make it float below anything that comes after it

Yes and no. It can be done with floats by first setting right negative margin 100% on your 3 columns and the source order can be anyway you like. See it at 768px width Here. Don’t know tho, if it can be done using fixed width on your left and right columns.