another, sometimes, helpful custom class is
.spanauto {
width: auto;
} helpful if you are using Chosen - a JavaScript plugin for jQuery and Prototype <http://www.google.com.my/url?sa=t&rct=j&q=chosen%20jquery&source=web&cd=1&ved=0CCkQFjAA&url=http%3A%2F%2Fharvesthq.github.com%2Fchosen%2F&ei=YhE_T73IHMjYrQeW3oHaBw&usg=AFQjCNHiUtkPjDbSSthAfE-maodSU3TFhg&sig2=t-jjHv3fpqSaH1ljBB415Q>for auto complete select (could be useful for typeahead as well)
