diff --git a/concept/index.html b/concept/index.html
index 7b16593..5d5af7a 100644
--- a/concept/index.html
+++ b/concept/index.html
@@ -9,9 +9,9 @@
 <body>
     <header>
         <li>
-            <ul><a href=""><button>hallo</button></a></ul>
-            <ul><a href=""><button>alvin</button></a></ul>
-            <ul><a href=""></a><button>kkk</button></ul>
+            <a href=""><button>hallo</button></a>
+            <a href=""><button>alvin</button></a>
+            <a href=""></a><button>kkk</button>
         </li>
 
     </header>
