#stacks_in_7 h1 {
    font-weight: 800;
}

#stacks_in_7 h1 {
    margin: 0 0 20px 0;
}


#stacks_in_7 {
	padding:  20px;
}

#stacks_in_9 {
	padding:  20px;
}

#stacks_in_12 {
	padding:  20px;
}