gistfile1.scss

@mixin same($values...){
	$length: length($values);
	$value: nth($values, $length);

	@for $i from 1 to $length{
    	#{nth($values, $i)}: $value;
    }
}

//Usage:
footer{
  @include same(top, left, right, bottom, 0);
  @include same(height, line-height, 60px);
}

//Output
footer{
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  height: 60px;
  line-height: 60px;
}