aerosyn,
The breadth of your question is pretty large but I think I can get you started. You should take a look at
http://www.w3schools.com/css/default.asp . It is a good primer on CSS and should help you with the nomenclature.
I would also suggest that you read Dreamweaver's tutorials on the subject of CSS and how it can help you manage your style sheets.
The simple solution to your question is this. Put this after the <BODY> tag.
And put a class attribute around whatever is containing the information that will go on the "left hand side".
i.e. if youR content is in a table it would be
As I said, this is a very quick explaination but CSS is much much deeper. I hope this gets you started.
stuboo