.card_scroller{position:relative;overflow:hidden}.card_scroller .card-header{position:relative;z-index:1;-webkit-overflow-scrolling:touch}.card_scroller .nav{-ms-flex-wrap:nowrap;flex-wrap:nowrap;white-space:nowrap}.card_scroller .nav,.card_scroller .nav .nav-item{position:relative;z-index:3}.card_scroller .card-body{overflow-x:auto}