.bannerhome
{	
	width: 100%;
	height: 100%;
	background-image: url("../img/octubre.jpg");
	background-repeat: no-repeat;
	background-size: 100% 100%;
	margin-top: -20px;
	text-align: center;
}


.bannernewdoc
{	
	width: 100%;
	height: 250px;
	background-image: url("../img/NOVIEMBRE.jpg");
	background-repeat: no-repeat;
	background-size: 100% 100%;
	margin-top: -20px;
	text-align: center;
}


.yourTableClass tr:nth-child(4n+1), .yourTableClass tr:nth-child(4n+2) 
{
 background: #ECE8E7;
}