undershoot {
	background-origin: padding-box;
	&.top, &.bottom {
		background-image: linear-gradient(to right, currentColor 50%, transparent 50%);
		background-size: 0.5em 1px;
		background-repeat: repeat-x;
	}
	&.right, &.left {
		background-image: linear-gradient(to bottom, currentColor 50%, transparent 50%);
		background-size: 1px 0.5em;
		background-repeat: repeat-y;
	}
	&.top {background-position: top;}
	&.bottom {background-position: bottom;}
	&.right {background-position: right;}
	&.left {background-position: left;}
	
}