[jQuery] [Autocomplete Plugin 1.0] Use of *.css files

[dineshv]

The autocomplete plugin comes with two css files - main.css and
jquery.autocomplete.css.  I'm guessing that the main.css is for the
demo script only - is that right?  What is the jquery.autocomplete.css
used for and is it necessary?  The reason for asking is that I'm
getting a conflict between my own css file and the above two and I was
wondering which if any can be eliminated?  Thanks!