.container {
  position: fixed;
  top: 0;
  bottom: 0;
  overflow: hidden;
  overflow-y: auto;
  width: 220px;
  border-right: 1px solid #e9e9e9;
  .ant-menu-inline {
    border-right: none;
  }
  span {
    border-bottom: 1px dashed #ff0000;
  }
}