diff --git a/src/layout.txt b/src/layout.txt
index c57b7e6..f41b386 100644
--- a/src/layout.txt
+++ b/src/layout.txt
@@ -32,13 +32,13 @@ row
 <div class="container">
   <nav class="nav left">left</nav>
   <section class="main">
-    <div class="col top">header</div>
+    <div class="col header">header</div>
     <div class="col middle">
       <div class="ver_hor_center">
         main
       </div>
     </div>
-    <div class="col bottom">footer</div>
+    <div class="col footer">footer</div>
   </section> 
 </div>
 
@@ -65,7 +65,7 @@ row
 .col {
   margin: 2px;
 }
-.top {
+.header {
     flex: 0 0;
     height: 20px;
     background: yellow;
@@ -74,7 +74,7 @@ row
     height: 100%;
     background: pink;
   }
-.bottom {
+.footer {
     flex: 0 0;
     height: 20px;
     background: cyan;
@@ -84,6 +84,6 @@ row
 {
   /* horizontal und vertikal zentrieren */
   position: absolute;
-  top: 50%;
-  left: 50%;
+  top: 25%;
+  left: 25%;
 }