#stacks_in_12_page13 {
	margin: 0px 20px 0px 0px;
}

#stacks_in_2_page13 {
	margin: 20px 0px 20px 0px;
}

#stacks_in_4_page13 {
	margin: 0px 0px 20px 0px;
}

#stacks_in_8_page13 {
	margin: 40px 0px 0px 0px;
}