.sideknowledgesnav{margin-bottom:20px}
.sideknowledgesnav ul li{font-size:var(--fontsize16);text-align:left;border-bottom:1px solid #F9F9F9;}
.sideknowledgesnav ul li a{padding:10px 5px;display:block;line-height:25px}
.sideknowledgesnav+.knowledges-left-ab {display:none}