.fixed-elem{position:fixed;z-index:10;background-color:white;width:100%;opacity:0.975}.padding-elem{min-height:3.25rem}.small-padding-elem{min-height:1.25rem}.bounded-size-square{max-height:100px;padding-left:5px;padding-right:5px}.bounded-size-rect{max-height:70px;padding-left:5px;padding-right:5px}.centered{margin-left:auto;margin-right:auto;display:block;text-align:center}