mixin horizontal
	display flex
	flex-direction row

mixin horizontal-wrap
	display flex
	flex-flow row wrap

mixin vertical
	display flex
	flex-direction column

mixin vertical-wrap
	display flex
	flex-flow column wrap

mixin ui-element
	border ui-border
	background ui-background
	border-radius 3px
	transition all transition-speed ease

	&:hover
		border ui-hover-border
		background ui-hover-background
		box-shadow outline-shadow-medium