title: How to pass a mixin as a parameter of another mixin in SASS
body: <p>I have a mixin that converts px to rem <a href="https://github.com/pierreburel/sass-rem" rel="noreferrer">PX TO REM</a>, I have this code:</p>
  
  <pre>
  
      .button {
          @include rem(font-size, 24px);
          @include rem(padding, 10px);
          @include rem(border-radius, 5px);
      }
  
  </pre>
  
  <p>This would produce this CSS:</p>
  
  <pre>
  
      .button {
          font-size: 1.5rem;
          padding: 0.625rem;
          border-radius: 0.3125rem; }
  
  </pre>
  
  <p>But I'd like to use some mixins from compass and for example I want to use border-radius from compass</p>
  
  <pre>
  
      .box {
          @include border-radius(10px);
      }
  
  </pre>
  
  <p>And it would generate this CSS:</p>
  
  <pre>
  
      .box {
          -moz-border-radius: 10px;
          -webkit-border-radius: 10px;
          border-radius: 10px; }
  
  </pre>
  
  <p>Is there a way to do something like this:</p>
  
  <pre>
  
      .box {
          @include rem(@include border-radius(10));
      }
  
  </pre>