diff --git a/_layouts/default.html b/_layouts/default.html
index bd3a78f..c02f82d 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: 2px;
+            border: 2px solid black;
         }
         .language-python {
             /* New styles for Python code */
@@ -34,7 +34,7 @@
             padding: 10px; /* Padding around the code block */
             font-family: 'Courier New', monospace; /* Monospaced font for code */
             /* Add other styling properties as needed */
-            border: 2px;
+            border: 2px solid black;
         }
         .language-matlab {
             /* New styles for MATLAB code */
@@ -43,7 +43,7 @@
             padding: 10px; /* Padding around the code block */
             font-family: 'Courier New', monospace; /* Monospaced font for code */
             /* Add other styling properties as needed */
-            border: 2px;
+            border: 2px solid black;
         }
         .highlight .hll {  color: #000000 background-color: #d5e3f3 }
         .highlight  { border: 0px; background: #d5e3f3; }
@@ -117,7 +117,7 @@
 
         .highlight .n { color: #000000 } 
         .highlight .p { color: #000000 } 
-        .highlight .code { color: #000000 } 
+        code { color: #000000 } 
 
         table {
           border-collapse: collapse;
@@ -180,8 +180,8 @@
                 </div>
             </main>
         </div>
-    
-        
+        <p>
+            
         <footer id="footer" class="typo3-search-exclude">
             <section class="section footer-section footer-section-content">
                 <h2 class="sr-only">Footer</h2>