Creating two columns layout - html/css semantics

Question

I want to create a very simple liquid layout with 2 columns - the one to the left will have a fixed width, and the one to the right will be dependent to the window size.

Answer 1

1. Yes, you can use your body as your container.
2. You can get rid of your inner div-s as long as you use box-sizing: border-box; More about that here: http://css-tricks.com/box-sizing/