/*
.main{
	border:2px solid brown;
	padding:5px;
	width:100%;
	box-sizing:border-box;
}
*/
.row1{
	border:2px solid brown;
	padding:15px;
	width:100%;
	float:left;
	box-sizing:border-box;
}
.row2{
	border:2px solid brown;
	padding:15px;
	width:100%;
	float:left;
	box-sizing:border-box;
}
.row2-1{
	border:2px solid brown;
	padding:10px;
	width:33.33%;
	float:left;
	box-sizing:border-box;
}
.row2-2{
	border:2px solid brown;
	padding:10px;
	width:33.33%;
	float:left;
	box-sizing:border-box;
}
.row2-3{
	border:2px solid brown;
	padding:10px;
	width:33.33%;
	float:left;
	box-sizing:border-box;
}
.row3{
	border:2px solid brown;
	padding:15px;
	width:100%;
	float:left;
	box-sizing:border-box;
}
.row4{
	border:2px solid brown;
	padding:15px;
	width:100%;
	float:left;
	box-sizing:border-box;
}
.row4-1{
	border:2px solid brown;
	padding:10px;
	width:50%;
	float:left;
	box-sizing:border-box;
}
.row4-2{
	border:2px solid brown;
	padding:10px;
	width:50%;
	float:left;
	box-sizing:border-box;
}