diff --git a/src/app/app.html b/src/app/app.html
index 80a6012..e7d04c9 100644
--- a/src/app/app.html
+++ b/src/app/app.html
@@ -13,40 +13,29 @@
             </a>
         </div>
         <ul nz-menu nzTheme="dark" nzMode="inline" [nzInlineCollapsed]="isCollapsed">
-            <li nz-submenu nzOpen nzTitle="Dashboard" nzIcon="dashboard">
-                <ul>
-                    <li nz-menu-item nzMatchRouter>
-                        <a routerLink="/welcome">Welcome</a>
-                    </li>
-                    <li nz-menu-item nzMatchRouter>
-                        <a routerLink="/book">Book</a>
-                    </li>
-                    <li nz-menu-item nzMatchRouter>
-                        <a routerLink="/author">Author</a>
-                    </li>
-                    <li nz-menu-item nzMatchRouter>
-                        <a routerLink="/loan">Loan</a>
-                    </li>
-                    <li nz-menu-item nzMatchRouter>
-                        <a routerLink="/user">User</a>
-                    </li>
-                </ul>
+            <li nz-menu-item nzMatchRouter>
+                <a routerLink="/welcome">Welcome</a>
             </li>
-            <li nz-submenu nzOpen nzTitle="Form" nzIcon="form">
-                <ul>
-                    <li nz-menu-item nzMatchRouter>
-                        <a>Basic Form</a>
-                    </li>
-                </ul>
+            <li nz-menu-item nzMatchRouter>
+                <a routerLink="/book">Book</a>
+            </li>
+            <li nz-menu-item nzMatchRouter>
+                <a routerLink="/author">Author</a>
+            </li>
+            <li nz-menu-item nzMatchRouter>
+                <a routerLink="/loan">Loan</a>
+            </li>
+            <li nz-menu-item nzMatchRouter>
+                <a routerLink="/user">User</a>
             </li>
         </ul>
     </nz-sider>
     <nz-layout>
         <nz-header>
             <div class="app-header">
-        <span class="header-trigger" (click)="isCollapsed = !isCollapsed">
-          <nz-icon class="trigger" [nzType]="isCollapsed ? 'menu-unfold' : 'menu-fold'"/>
-        </span>
+                <span class="header-trigger" (click)="isCollapsed = !isCollapsed">
+                  <nz-icon class="trigger" [nzType]="isCollapsed ? 'menu-unfold' : 'menu-fold'"/>
+                </span>
             </div>
         </nz-header>
         <nz-content>
diff --git a/src/app/app.routes.ts b/src/app/app.routes.ts
index 793776c..a784254 100644
--- a/src/app/app.routes.ts
+++ b/src/app/app.routes.ts
@@ -3,16 +3,8 @@ import {Routes} from '@angular/router';
 export const routes: Routes = [
     {path: '', pathMatch: 'full', redirectTo: '/welcome'},
     {path: 'welcome', loadChildren: () => import('./pages/welcome/welcome.routes').then(m => m.WELCOME_ROUTES)},
-
-    {path: '', pathMatch: 'full', redirectTo: '/book'},
     {path: 'book', loadChildren: () => import('./pages/book/book.routes').then(m => m.BOOK_ROUTES)},
-
-    {path: '', pathMatch: 'full', redirectTo: '/author'},
     {path: 'author', loadChildren: () => import('./pages/author/author.routes').then(m => m.AUTHOR_ROUTES)},
-
-    {path: '', pathMatch: 'full', redirectTo: '/loan'},
     {path: 'loan', loadChildren: () => import('./pages/loan/loan.routes').then(m => m.LOAN_ROUTES)},
-
-    { path: '', pathMatch: 'full', redirectTo: '/user' },
-    { path: 'user', loadChildren: () => import('./pages/user/user.routes').then(m => m.USER_ROUTES) },
+    { path: 'user', loadChildren: () => import('./pages/user/user.routes').then(m => m.USER_ROUTES) }
 ];