CSS help with sections

[ChloeHSmith]

I am quite new to creating webpages using dreamweaver CS5 especially CSS.

I have been trying to create a CSS to import into my html website however if you have a website that is three collums e.g. white middle, black eitherside, how would you go about changing each sections BG colour? Would it be through the CSS or the html?

Many thanks

 

[Phreaddee]

Css

Background-color:#000;

black...

Background-color:#fff;

White...
ALWAYS use css for stylistic changes