修改BUG：表格工具条最小布局按钮右侧多一个像素，使用样式Table-Cell消除

Bootstrap.Admin/Content/css/admin-responsive.css

@@ -86,7 +86,7 @@
 @media (max-width: 400px) {
     .toolbar .dropdown-menu a {
         border-left: none;
-        padding: 8px;
+        padding: 0 8px;
     }
 
         .toolbar .dropdown-menu a:first-child {

Bootstrap.Admin/Content/css/admin.css

@@ -308,16 +308,14 @@ ul.sidebar-menu {
 }
 
     .toolbar .dropdown-menu {
-        padding: 0;
         margin-top: 4px;
-        white-space: nowrap;
-        min-width: 40px;
+        min-width: inherit;
     }
 
         .toolbar .dropdown-menu a {
-            padding: 8px 20px;
+            padding: 0 20px;
             border-left: solid 1px #aeb2b7;
-            border-right: none;
+            display: table-cell;
             color: #504d4d;
         }