Changing width of jquery-ui autocomplete widgets individually

Question

I\'m working with mutiple jquery-ui autocomplete widgets on one page and want to be able to set the widths of each one individually. Currently, I\'m doing it like this:

Answer 1

I like @Martin Lögdberg answer but if you're using fixed sized widths rather than doing some fancy maths on the returned results to set the width, then you could also just set the width in CSS

ul .ui-autocomplete {
  width: 50%;
}