.admin_sider{overflow:hidden;overflow-y:auto;height:100vh;position:fixed!important;left:0;top:0;bottom:0}.admin_sider::-webkit-scrollbar{width:8px;background-color:#f5f5f5}.admin_sider::-webkit-scrollbar-track{-webkit-box-shadow:inset 0 0 8px rgba(0,0,0,.25);background-color:#f5f5f5;border-radius:8px}