.tab{background-color:#00003b;border:1px solid #00003b;overflow:hidden}.tab button{background-color:inherit;border:none;color:#fff;cursor:pointer;float:left;outline:none;padding:14px 16px;transition:.3s}.tab button.active,.tab button:hover{background-color:#970000}.tabcontent{border:1px solid #00003b;border-top:none;display:none;padding:6px 12px}