Problem calculating percentage for body width

Question

I need to build a classic 960px layout and I have to convert that 960px into %. So, I should use 960px / 16px = 60%, right?

Note: 960px =

Answer 1

The right way to calculate body width in a fluid layout:

body {
    width:100%;
    max-width:960px;
    height:100%; 
    margin:0 auto;
} 

The max-width value should be whatever your page width is, and margin does not need a page wrap.