.tab{overflow:hidden}.tab button{background-color:inherit;float:left;border:0;outline:0;cursor:pointer;padding:14px 16px;transition:.3s;font-size:1.4rem}.tabcontent{display:none;padding:6px 12px;border-top:0}.topright{float:right;cursor:pointer;font-size:28px}.topright:hover{color:red}