.dark body{background:#363636}.dark .main-portal-section{background:#fff;border:1px solid #363636;border-radius:10px;max-width:1400px;max-height:calc(100vh - 40px);margin:20px auto 0;overflow:hidden}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#888}::-webkit-scrollbar-thumb:hover{background:#555}.dark .custom-hr{border-color:#202020}