title: How to display a 100% width stripe in a CSS design using a fixed-grid blueprint?
body: <p>Not sure that the title is really describing what I am trying to do. Actually, this is quite simple and widespread usage over the internet : </p>
  
  <p>I want in the background some liquid/full width of stripes (with the same height of some div of the design) while my content is using a Blueprint fixed-grid.</p>
  
  <p>For instance, this website : <a href="http://intient.com/" rel="nofollow noreferrer">intient.com</a> is doing exactly what I am looking for. A background stripe in black (and another one in grey) that is liquid width and the content using a grid (but not Blueprint after having a look at the CSS)</p>
  
  <p>I am using a Blueprint fixed-width grid (950px) for displaying any content.
  Do you know how I can do that? With Blueprint? And without a static background image...</p>
  
  <p>Thanks</p>