div.master_container {
	width: 100%; 
	float: left;  
	position: relative;
}
div.container_2column {
	width: 46%; 
	padding: 4px;
	background-color: #abada6;
	float: left;  
	position: relative;
}
div.container_3column {
	width: 30%;
	padding: 4px;
	background-color: #abada6;
	float: left;  
	position: relative;
}