Whatever answer has suggested by Sandeep is correct. I just wanted to add few point overhere.
You can have a look into
CSS Friendly Menu Adpater
, which is much more handy for CSS implementation. As ASP.NET Menu is rendered into
. Which some times creates issue with CSS.
So, have a look into CSS Friendly Menu Adapter.
You will find many more sample in net.
Hope this will help you