#stacks_in_15{text-align:justify}

#stacks_in_17 {
	margin:  10px;
	padding:  10px;
}
#stacks_in_4{text-align:justify}

#stacks_in_6 {
	margin:  20px;
}
#stacks_in_10{text-align:justify}

#stacks_in_23 {
	margin:  10px;
	padding:  10px;
}
#stacks_in_21{text-align:justify}