diff --git a/src/index.htm b/src/index.htm
index c46126d..4dbfde5 100644
--- a/src/index.htm
+++ b/src/index.htm
@@ -230,7 +230,9 @@
 
     <div class="p-4 pb-20 max-w-4xl mx-auto text-center">
       <h1 class="text-3xl text-center font-heading font-extrabold">Sample Certificate</h1>
-      <img class="max-w-md bg-orange-800 rounded-lg mt-8 mx-auto" width="640" height="480"/>
+      <div class="max-w-md mx-auto">
+        <img class="bg-orange-800 mt-8" width="640" height="480"/>
+      </div>
     </div>
 
     <div class="bg-blue-900 text-blue-100 py-8">