菜单高度不够时的滚动问题

@@ -47,7 +47,7 @@
                 <!--导航菜单-->
                 <!--导航菜单-->
                 <el-menu :default-active="$route.path" class="el-menu-vertical-demo" @open="handleopen"
                 <el-menu :default-active="$route.path" class="el-menu-vertical-demo" @open="handleopen"
                          @close="handleclose" @select="handleselect" unique-opened router v-show="!collapsed"
                          @close="handleclose" @select="handleselect" unique-opened router v-show="!collapsed"
-                         style="min-width: 230px">
+                         style="min-width: 230px;overflow-y: scroll">
                     <template v-for="(item,index) in $router.options.routes" v-if="!item.hidden">
                     <template v-for="(item,index) in $router.options.routes" v-if="!item.hidden">
                         <el-submenu :index="index+''" v-if="!item.leaf">
                         <el-submenu :index="index+''" v-if="!item.leaf">
                             <template slot="title"><i :class="item.iconCls"></i>{{item.name}}</template>
                             <template slot="title"><i :class="item.iconCls"></i>{{item.name}}</template>
@@ -444,7 +444,6 @@
             aside {
             aside {
                 flex: 0 0 230px;
                 flex: 0 0 230px;
                 width: 230px;
                 width: 230px;
-                /*overflow-y: scroll;*/
                 background: #606060;
                 background: #606060;
                 // position: absolute;
                 // position: absolute;
                 // top: 0px;
                 // top: 0px;