title: Sass breakpoint doesn't work
body: <p>I've checked all possibilities, and haven't seen any issue.</p>
  
  <pre><code>config.rb
  </code></pre>
  
  <p>Have following line: <code>require 'breakpoint'</code></p>
  
  <pre><code>style.scss
  </code></pre>
  
  <p>also <code>@import "breakpoint";</code></p>
  
  <p>I'm trying this way:</p>
  
  <pre><code>$medium: 96rem; // or even $medium: 51rem 96rem;
  
  .any-class{
      @include breakpoint($medium);
      //change any property
  }
  </code></pre>
  
  <p>I don't see any effect in compiled css file, only new properties which overrides previous ones.
  I'm using <code>Sass 3.4.13 (Selective Steve)</code> and <code>Compass 1.0.1 (Polaris)</code>.</p>
  
  <p>Edit:
  Sample compilation result:</p>
  
  <pre><code>//Sass
  html{
      font-size: 62.5%;
  }
  body{
      @include breakpoint(100rem);
      background-color: #000;
  }
  </code></pre>
  
  <p>compiled:</p>
  
  <pre><code>//Css
  html {
    font-size: 62.5%;
  }
  body {
  }
  body {
    background-color: #000;
  }
  </code></pre>