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assets/design.css

@@ -1,4 +1,3 @@
-@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500&display=swap');
 
 * {
     box-sizing: border-box;
@@ -36,7 +35,7 @@ header {
 }
 
 .menu_list li a {
-    transition: all 0.3s ease 0s;
+    transition: all 0.3s ease 0.5s;
 }
 
 .menu_list li a :hover {

index.html

@@ -16,7 +16,7 @@
                     <li><a href='#'>Seite2</a></li>
                 </ul>
             </nav>
-            <a class="btn" href="#"><button>Knopf</button></a>
+            <a href="#"><button>Knopf</button></a>
         </header>
     </body>
 </html>