#stacks_in_20 {
	margin: 10px 0px 10px 0px;
}

#stacks_in_4 {
	margin: 4px 0px 4px 0px;
}

#stacks_in_10 {
	margin: 4px 0px 4px 0px;
}

#stacks_in_18 {
	margin: 4px 0px 4px 0px;
}