title: Is 12 columns the full page in a Zurb Foundation grid?
body: <p>I am just starting with Foundation 4's grid system and I was under the impression that the 12-column layout was the entire page, but when I opened up Foundation and saw their examples I was confused. Here is the picture <img src="https://i.stack.imgur.com/ZRgIV.png" alt="Foundation Open screen"></p>
  
  <p>The part under the grid says that it is a 12 column section so where I am confused is the 'Getting Started' sidebar.</p>
  
  <ol>
  <li>What is the width of a 12-column section?</li>
  <li>What is the 'Getting Started' sidebar? (how many columns?)</li>
  </ol>