box.css

.backgroundBorder{
	
	width:300px;
	height:100px;
	border : 3px solid red;
	background:yellow;
}

.marginPadding{
	
	width:300px;
	height:100px;
	border : 3px solid red;
	background:yellow;
	padding : 30px;
	margin: 40px;
	
}

.outline{
	
	width:300px;
	height:100px;
	border : 3px solid red;
	background:yellow;
	padding : 30px;
	margin: 40px;
	outline : 10px dashed blue;
}