.tab{overflow:hidden}.tab button{background-color:inherit;float:left;border:0;outline:0;cursor:pointer;padding:14px 16px;transition:.3s;font-size:17px;border-bottom:1px solid #dfe4ff}.tab button:hover{border-bottom:4px solid #49a5e1}.tab button.active{border-bottom:4px solid #49a5e1}.tabcontent{display:none}