Mixins in different CSS-preprocessors

mixin-example.less

.round-borders(@radius) {
  -webkit-border-radius: @radius;
  -moz-border-radius: @radius;
  border-radius: @radius;
}

.button {
  background-color: #adc;
  .round-borders(15px);
}

mixin-example.sass

=round-borders($radius)
  -webkit-border-radius: $radius
  -moz-border-radius: $radius
  border-radius: $radius

.button
  background-color: #adc
  +round-borders(15px)

mixin-example.scss

@mixin round-borders($radius) {
  -webkit-border-radius: $radius;
  -moz-border-radius: $radius;
  border-radius: $radius;
}

.button {
  background-color: #adc;
  @include round-borders(15px);
}

mixin-example.styl

round-borders() {
  -webkit-border-radius: arguments;
  -moz-border-radius arguments;
  border-radius arguments
}

.button
  background-color: #adc;
  round-borders(15px)