How to center dynamic ul

A UL is a block element, it'll take up the whole width of its container. If you remove float:left and set a width to it, then margin:0 auto will work, but only the ul will center and not the li, unless you know exactly what the width of the UL should be. If you do not know what the ul width should be(e.g. dynamic list menu), then you need to float:left the UL and li, put it in a div, and use this trick to center http://pmob.co.uk/pob/centred-float.htm