body h1,body h2,body h3{margin:0 0 20px}body#wrapper{padding-top:50px;overflow:hidden}body#wrapper #scroller{overflow-x:hidden;overflow-y:auto;width:100%;height:calc(100vh - 50px)}body#wrapper #scroller #scroller-wrapper footer,body#wrapper #scroller #scroller-wrapper header,body#wrapper #scroller #scroller-wrapper section{height:calc(100vh - 50px);vertical-align:middle;overflow:hidden;display:table;width:100%}body#wrapper #scroller #scroller-wrapper footer .wrapper,body#wrapper #scroller #scroller-wrapper header .wrapper,body#wrapper #scroller #scroller-wrapper section .wrapper{vertical-align:middle;display:table-cell;position:relative;text-align:center;margin:0 auto}body#body footer,body#body header,body#body section{vertical-align:middle;overflow:hidden;display:table;height:100vh;width:100%}body#body footer .wrapper,body#body header .wrapper,body#body section .wrapper{vertical-align:middle;display:table-cell;position:relative;text-align:center;margin:0 auto}