cz-hjjc-admin/src/styles/sidebar.scss

#navbar-menu {
  .sidebar-item {
    display: inline-block;
  }
  .el-menu-item, .el-submenu__title {
    height: 50px;
    line-height: 50px;
  }
  .el-submenu__icon-arrow {
    position: initial;
    margin-top: 0;
  }
}
.el-menu--collapse .el-menu .el-submenu, .el-menu--popup {
  text-align: center;
  min-width: 100px !important;
}