el-menu字段太长不换行

.el-submenu__title {
  display: flex;
  align-items: center;
}
.el-submenu__title span{
  white-space: normal;
  word-break: break-all;
  line-height: 20px;
  flex: 1;
  padding-right: 20px;
}
 
.el-menu-item {
  display: flex;
  align-items: center;
  padding-right: 20px!important;
}
.el-menu-item span {
  white-space: normal;
  word-break: break-all;
  line-height: 20px;
  flex: 1;
}

插入上述代码就可以实现菜单选项换行