diff --git a/_layouts/default.html b/_layouts/default.html
index a826767..a6c9c19 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -176,19 +176,19 @@
                     </div>
 
                     <nav class="navbar-collapse collapse" aria-label="Hauptnavigation">
-                        <div class="container">
-                            <ul id="mainNavigation" class="nav navbar-nav navbar-main" style="display: flex;">
-                                <li class="navbar-main-all-wrap2">
-                                    <ul class="navbar-main-wrap2" style="max-width: 1109px;">
-                                        <li>
-                                            <ul class="navbar-inner-wrap2">
-                                                <li class=" "><a href="/pytutorial/"><span>Home</span></a></li>
-                                            </ul>
-                                        </li>
-                                    </ul>
-                                </li>
-                            </ul>
-                        </div>
+                        <ul id="mainNavigation" class="nav navbar-nav navbar-main" style="display: flex;">
+                            <li class="navbar-main-all-wrap2">
+                                <ul class="navbar-main-wrap2" style="max-width: 1109px;">
+                                    <li>
+                                        <ul class="navbar-inner-wrap2">
+                                            <li class=" ">
+                                                <a href="/pytutorial/"><span>Home</span></a>
+                                            </li>
+                                        </ul>
+                                    </li>
+                                </ul>
+                            </li>
+                        </ul>
                     </nav>
                 </div>
             </div>