title: Setting variable to @mixin in Sass?
body: <p>Is there way to set <code>@include mixin();</code> to variable?
  I tried this</p>
  
  <pre class="lang-css prettyprint-override"><code>@mixin bg-gradient($fallback, $type, $positionX, $positionY, $from, $from-percent, $to, $to-percent){
      background: $fallback;
      background: -webkit-#{$type}-gradient($positionX $positionY, $from $from-percent, $to $to-percent);
      background:    -moz-#{$type}-gradient($positionX $positionY, $from $from-percent, $to $to-percent);
      background:         #{$type}-gradient($positionX $positionY, $from $from-percent, $to $to-percent);
  }
  
  $navBg: @include bg-gradient(#eee, radial, top, center, #999, 0%, #555, 100%);
  body { $navBg; } // it gave me an error
  </code></pre>