KNACSS/sass/_02-layout.scss

/* flexbox layout 
Tutorial: http://knacss.com/demos/tutoriel.html#flex */
.flex {
	display : flex;
}

.flex-h {
	flex-direction: row;
}

.flex-v {
	flex-direction: column;
}

.flex-fluid {
	flex: 1;
}

.flex-start {
	order : -1;
}

.flex-mid {
	order : 1;
}

.flex-end {
	order : 42;
}