.accordion{background-color:#eee;color:#444;cursor:pointer;padding:18px;width:100%;text-align:left;border:none;outline:none;transition:.4s}.active,.accordion:hover{background-color:#ccc}button.accordion:after{content:'\002B';color:#777;font-weight:700;float:right;margin-left:5px}button.accordion.active:after{content:"\2212"}.panel{padding:0 18px;background-color:#fff;display:none;overflow:hidden}