Butfirst / Butlast in SCSS

gistfile1.scss

/*
Apply a style to all elements but the first or last one.
Such as:

.items {
   @include butfirst(margin-top, 10px);
}

.menu-item {
   @include butlast(margin-right, 10px);
}

*/

@mixin butfirst($property, $v) {
	#{$property}: #{$v};

	&:first-child {
		#{$property}: 0;
	}
}

@mixin butlast($property, $v) {
	#{$property}: #{$v};

	&:last-child {
		#{$property}: 0;
	}
}