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@mixin skewbg($amount) {
	position: relative;
	&:after {
		@include transform( skewY($amount) );

		position: absolute;
		top: 0; left: 0; right: 0; bottom: 0;

		@content;
	}
}

// example
.homesection {
	@include skewbg(-2.5deg) {
		background: rgba(255,255,255,.5);
	}
}