body{margin:0;padding:0;font-family:sans-serif;scrollbar-width:"thin"}.loading{transition:height .2s ease-in-out;overflow:hidden}.loading,.loading.show-loading{height:4px}.loading.stop-loading{height:0}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#3498db}::-webkit-scrollbar-thumb:hover{background:#555}