title: What does $fix-mqs do in Jake Archibald's IE Sass mixins?
body: <p>I'm confused about the purpose of the <code>$fix-mqs</code> in <a href="http://jakearchibald.github.com/sass-ie/" rel="nofollow">http://jakearchibald.github.com/sass-ie/</a></p>
  
  <p>I can see how the rest of the mixin works but can't figure this part out. I have used this pattern it in a project and everything seems to work if I ignore it and put a fixed width in an old-ie include on the body or generic wrapper element, for example:</p>
  
  <pre><code>.l-wrapper {
      @include old-ie {
          width: 960px;
      }
  }
  </code></pre>
  
  <p>So my question is what is <code>$fix-mqs</code> for and what does it do?</p>