修改后台菜单不能下拉问题

src/main/resources/templates/admin/common/left.html

@@ -181,11 +181,11 @@
                     </dd>
                 </dl>
                 <dl shiro:hasPermission="G_RETREAT_OPTIMIZATION">
-                    <dt class="titCellTop">
+                    <dt class="titCell">
                         <span><i class="Hui-iconfont ft-18">&#xe636;</i> 退二优二 </span>
                         <i class="Hui-iconfont menu_dropdown-arrow">&#xe6d5;</i>
                     </dt>
-                    <dd>
+                    <dd class="mainCell">
                         <ul>
                             <li shiro:hasPermission="G_RETREAT_OPTIMIZATION_MANAGE">
                                 <a
@@ -197,11 +197,11 @@
                     </dd>
                 </dl>
                 <dl shiro:hasPermission="G_INDUSTRIAL_LAND">
-                    <dt class="titCellTop">
+                    <dt class="titCell">
                         <span><i class="Hui-iconfont ft-18">&#xe621;</i> 产业用地预审</span>
                         <i class="Hui-iconfont menu_dropdown-arrow">&#xe6d5;</i>
                     </dt>
-                    <dd>
+                    <dd class="mainCell">
                         <ul>
                             <li shiro:hasPermission="G_INDUSTRIAL_LAND_APPLY">
                                 <a