I'm having issues with converting tables to css. Any good advice to make it a simpler task?

I'm having issues with converting tables to css. Any good advice to make it a simpler task?Here is the assignment..You should make use of the <div> tag and class argument to this tag in your efforts to create containers for parts of your page. One div should be used to 'hold' your navigational menu and another div to 'hold' the main page. I also expect all pages in your site to exist at this point – but some may be empty (no content except navigational structure) or may say ‘under construction’. All images should exist and you should have a valid logo with purpose and target audience identified as well.Here is the address to the website I need to convert.http://cs.franklin.edu/~kocsis02/web234rootpage.htmlThank you