.center{position:absolute;bottom:0px;right:0px;left:0px;top:0px;margin:auto}.center-vertical{position:absolute;top:0px;bottom:0px;margin:auto}.center-horizontal{position:absolute;right:0px;left:0px;margin:auto}.center-text-box,.bottom-text-box{display:table-cell}.center-text-box{vertical-align:middle}.bottom-text-box{vertical-align:bottom;text-align:center}.bottom-snap{display:table;width:100%;height:100%}