A Sass mixin I wrote to make CSS position declarations quicker to write.

position.scss

@mixin pos($pos,$top,$right,$bottom,$left){
	position: $pos;
	@if $top {
    top: $top;
  } @if $right {
    right: $right;
  }	@if $bottom {
    bottom: $bottom;
  }	@if $left {
    left: $left;
  }
}