菜单箭头

src/assets/styles/ruoyi.scss

@@ -312,4 +312,8 @@
 }
  .el-descriptions__content{
   background-color: rgba(245, 252, 255, 1);
+ }
+
+ .el-sub-menu .el-sub-menu__icon-arrow {
+  color: #fff;
  }
\ No newline at end of file