.arrow {
	width: 0;
	height: 0;
	border: 5px solid #000;
}

.arrow-black{
	border-color: #000;
}

.arrow-white{
	border-color: #fff;
}

.arrow-up {
	border-left-color: transparent;
	border-right-color: transparent;
	border-top: 0 none;
}

.arrow-down {
	border-left-color: transparent;
	border-right-color: transparent;
	border-bottom: 0 none;
	
}

.arrow-right {
	border-top-color: transparent;
	border-bottom-color: transparent;
	border-right: 0 none;
}

.arrow-left {
	border-top-color: transparent;
	border-bottom-color: transparent;
	border-left: 0 none;
}