#stacks_in_8_page0 {
	margin:  20px;
}

#stacks_in_16_page0 .stacks_left {
	float:left;
	width:49%;
}

#stacks_in_16_page0 .stacks_right {
	float:right;
	width:49%;
}
#stacks_in_19_page0 {
	margin:  20px;
}

#stacks_in_21_page0 {
	margin:  20px;
}