.card-header{padding:0px;background-color:transparent;border-bottom:0}.card-footer{font-size:.9em;padding:0px;background-color:transparent;border-top:0}@media screen and (max-width:768px){.card{margin:15px 0;width:auto;padding:15px}}@media screen and (max-width:540px){.card{text-align:center}}