<div class="border"></div>
.border {
	width: 300px;
	height: 100px;
	margin: 20px auto;
	
	border-top: 10px solid #f44;
	border-right: 10px solid #4f4;
	border-bottom: 10px solid #44f;
	border-left: 10px solid #333;
}
Rerun