diff --git a/index.html b/index.html
index a5e5330..7328478 100644
--- a/index.html
+++ b/index.html
@@ -114,7 +114,17 @@ title: Twentyone.World
 </div>
 
 <center>
-    <a href="/concept">
-        <img src="/images/concept.svg" width="69%"/>
-    </a>
-</center>
+    <p>
+        <a href="/concept">
+            <button type="button" class="btn btn-primary btn-large btn-custom">Understand the Concept</button>
+        </a>
+    </p>
+
+    <p>&nbsp;</p>
+
+    <p>
+        <a href="/concept">
+            <img src="/images/concept.svg" width="69%" />
+        </a>
+    </p>
+</center>
\ No newline at end of file