I am trying to create a site layout using CSS. I have four (4) DIV elements. One is the main container that I have centered in the page and contains all the other DIV elements. Of the remaining three DIVs one is a page header, one is a left menu and the last holds content for the page. I would like to have the CONTENT DIV floated such that it is adjacent to the MENU DIV. However, I am finding that the width of the CONTENT DIV is not using the width I specified. I have created a sample running on JSFIDDLE which should make it easier to visualize.
What I am trying to figure out is why the CONTENT DIV doesn't take up 600 pixels as I have defined? Thank you.