title: Error using @include with scss
body: <p>How do I get media queries to work in bootstrap? I have a SCSS file, I think I need to import something but I have no idea what.</p>
  
  <p><strong>Error message:</strong></p>
  
  <pre><code>Scss compiler error: Error: no mixin named media-breakpoint-up
  </code></pre>
  
  <p>Path: <code>homepage.scss</code></p>
  
  <pre><code>@include media-breakpoint-up(sm) {
    h1.home-page {
      font-size: 3rem;
    }
  }
  </code></pre>