Simple universal Vendor SASS Mixin. Example: @include vendor(-prefix- transition, -prefix- transform 0.2s ease-in-out );

vendormixin.sass

@mixin vendor($name, $args...) {
  $vendors: -webkit-, -ms-, -moz-, -o-;
  $nextWithVendor: false;
  $first: true;
  $cleanValues: null;
  $cleanName: $name;
  @if nth( $name, 1 ) == -prefix- {
    $cleanName: nth( $name, 2 );
  }

  @each $vendor in $vendors {
    $values: null;

    @each $arg in $args {
      @if nth( $arg, 1 ) == -prefix- {
        $subValues: null;
        @each $subValue in $arg {
          @if $subValue != -prefix- {
            $subValues: append( $subValues, $subValue );
          }
        }
        $values: append( $values, $vendor + $subValues, comma );
        @if $first {
          $cleanValues: append( $cleanValues, $subValues, comma );
        }
      }
      @else {
        $values: append( $values, $arg, comma );
        @if $first {
          $cleanValues: append( $cleanValues, $arg, comma );
        }
      }
    }
    $first: false;

    @if $cleanName != $name {
      #{$vendor + $cleanName}: $values;
    }
    @else {
      #{$cleanName}: $values;
    }
  }
  
  #{$cleanName}: $cleanValues;
}