.main-content {background-color: #f5f5f5;}

.principal-content {
    background-color: white;
    padding: 20px;
    border-style: solid;
    border-width: 1px;
    border-color: #CCC;
    margin-bottom: 40px;
}

.img-right {
	float:right;
	width:180px;
}