diff --git a/index.html b/index.html
index b0fa1f3..19f02a2 100644
--- a/index.html
+++ b/index.html
@@ -25,7 +25,7 @@
       color: #555;
     }
 
-    button, .dropdown-btn, .source-btn {
+    button, .dropdown-btn {
       background-color: #4caf50;
       color: white;
       padding: 10px 20px;
@@ -38,6 +38,20 @@
       display: inline-block;
       max-width: 200px;
     }
+    
+    .source-btn {
+      background-color: #000000;
+      color: white;
+      padding: 10px 20px;
+      font-size: 16px;
+      cursor: pointer;
+      border: none;
+      border-radius: 5px;
+      margin: 10px auto;
+      text-decoration: none;
+      display: inline-block;
+      max-width: 200px;
+    }
 
     button:hover, .dropdown-btn:hover, .source-btn:hover {
       background-color: #45a049;