diff --git a/index.html b/index.html
index 6d30f7a..0bd9f9d 100644
--- a/index.html
+++ b/index.html
@@ -14,23 +14,31 @@
             <div class="w3-container w3-center">
                 <div class="w3-row">
                     <div class="w3-col">
-                        <a href="/app" class="w3-btn w3-black">Element - c-base version</a>
+                        <a href="/app" class="w3-btn w3-black w3-round-large w3-margin-top w3-block">Element - c-base version</a>
                     </div>
                 </div>
                 <div class="w3-row">
                     <div class="w3-col">
 
-                        <a href="/devel" class="w3-btn w3-black">Element - c-base version (development)</a>
+                        <a href="/devel" class="w3-btn w3-black w3-round-large w3-margin-top w3-block">Element - c-base version (development)</a>
                     </div>
                 </div>
                 <div class="w3-row">
                     <div class="w3-col">
-                        <a href="/app-p2p" class="w3-btn w3-black">Element P2P - c-base version</a>
+                        <a href="/app-p2p" class="w3-btn w3-black w3-round-large w3-margin-top w3-block">Element P2P - c-base version</a>
                     </div>
                 </div>
                 <div class="w3-row">
                     <div class="w3-col">
-                        <a href="/devel-p2p" class="w3-btn w3-black">Element P2P - c-base version (development)</a>
+                        <a href="/devel-p2p" class="w3-btn w3-black w3-round-large w3-margin-top w3-block">Element P2P - c-base version (development)</a>
+                    </div>
+                </div>
+                <div class="w3-row">
+                    <div class="w3-col">
+                        <label class="w3-btn w3-black w3-round-large w3-margin-top">
+                        <input type="checkbox" name="zutat" value="salami">
+                        Erinnere dich.
+                        </label>
                     </div>
                 </div>
             </div>