diff --git a/_layouts/default.html b/_layouts/default.html
index 771d55c..6927950 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -25,7 +25,7 @@
             padding: 10px; /* Example padding */
             font-family: 'Courier New', monospace; /* Monospaced font for code */
             /* Add other styling properties as needed */
-            border: 1px solid #00326d;
+            border: 0px solid #00326d;
             margin: 5px;
         }
         .language-python {
@@ -35,7 +35,7 @@
             padding: 10px; /* Padding around the code block */
             font-family: 'Courier New', monospace; /* Monospaced font for code */
             /* Add other styling properties as needed */
-            border: 1px solid #00326d;
+            border: 0px solid #00326d;
             margin: 5px;
         }
         .language-matlab {
@@ -45,7 +45,7 @@
             padding: 10px; /* Padding around the code block */
             font-family: 'Courier New', monospace; /* Monospaced font for code */
             /* Add other styling properties as needed */
-            border: 1px solid #00326d;
+            border: 0px solid #00326d;
             margin: 5px;
         }
         .highlight .hll {  color: #000000; background-color: #d5e3f3 }
@@ -196,6 +196,8 @@
                     </div>
                 </div>
             </main>
+            <p>
+            The source code is Open Source and can be found on <a href="https://github.com/davrot/pytutorial"> GitHub" </a>
         </div>
         <p>