#stacks_in_10 {
	margin: 20px 0px 20px 0px;
}

#stacks_in_2 {
	margin: 20px 0px 20px 0px;
}

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

#stacks_in_16 {
	margin: 20px 0px 20px 0px;
}

#stacks_in_20 {
	margin: 20px 0px 20px 0px;
}