#stacks_in_13 {
	margin: 5px 0px 0px 0px;
}

#stacks_in_6 .stacks_left {
	float:left;
	width:49%;
}

#stacks_in_6 .stacks_right {
	float:right;
	width:49%;
}
#stacks_in_6 {
	margin: 20px 0px 0px 0px;
}

#stacks_in_10 {
	margin:  2px;
	padding:  5px;
}

#stacks_in_4 {
	margin: 20px 0px 0px 0px;
}