.placeholder{height:63px;position:relative}#affix{margin-bottom:-63px;position:absolute;width:100%}#affix.scrolled{box-shadow:0 1px 5px 0 rgba(25,29,58,.05),0 3px 1px -2px rgba(25,29,58,.02),0 2px 2px 0 rgba(25,29,58,.03);margin-bottom:0!important;margin-top:0!important;position:fixed;top:0;width:100%}