diff --git a/src/lab/bstyle.css b/src/lab/bstyle.css
index f289b42a..5827e934 100644
--- a/src/lab/bstyle.css
+++ b/src/lab/bstyle.css
@@ -55,10 +55,10 @@ line-height: 5px;
 }
 
 .navbar-default {
-height: 80px;
-padding-top: 15px;
-padding-left: 45px;
-font-size: 1.7em;
+height: 8rem;
+padding-top: 1rem;
+padding-left: 4rem;
+font-size: 1.7rem;
 font-family: 'Actor', sans-serif;
 background: #3652a4;
 border-color: #e7e7e7;
@@ -79,9 +79,3 @@ color: #fff;
 background: #3652a4;
 }
 
-@media (max-width: 480px) {
-  .manual-section-description {
-	padding: 0em 0em 0em 0em;
-	margin: 0em 0em 0em 0em;
-}
-}
\ No newline at end of file
diff --git a/src/lab/exp9/index.html b/src/lab/exp9/index.html
index e1d22769..105d8dde 100644
--- a/src/lab/exp9/index.html
+++ b/src/lab/exp9/index.html
@@ -1,6 +1,8 @@
 <!DOCTYPE html>
 <html>
 <head>
+<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
+
   <title>Computer-Programming</title>
   <link rel="stylesheet" type="text/css" href="../../normalize.css">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
@@ -23,6 +25,7 @@
       </style>  
 </head>
     <body>
+   
 
       <nav class="navbar navbar-default visible-lg" role="navigation">
         <!-- Brand and toggle get grouped for better mobile display -->
@@ -139,5 +142,16 @@
     </div>
   </div></div>
 
+    <!-- <script>
+      $('ul li a').on('click', function(){
+      $(this).parent().addClass('active').siblings().removeClass('active');
+      });
+    </script> -->
+<script>
+    $('ul li a').on('click', function(){
+    $(this).parent().addClass('active').siblings().removeClass('active');
+ });
+</script>
+
 </body>
 </html>
\ No newline at end of file
diff --git a/src/lab/exp9/quiz.html b/src/lab/exp9/quiz.html
index c66878ee..c52d4a23 100644
--- a/src/lab/exp9/quiz.html
+++ b/src/lab/exp9/quiz.html
@@ -90,7 +90,7 @@
     </pre>
 <input name="Q3" type="radio" value="1">a. 20 40 60 80 60 40 20<br>
 <input name="Q3" type="radio" value="2">b. 80 60 40 20<br>
-<input name="Q3" type="radio" value="3">c. 20 40 60 80 80 60 40 20<br>
+<input name="Q3" type="radio" value="3">c. 20 40 80 80 40 20<br>
 <input name="Q3" type="radio" value="4">d. 20 40 60 80<br>
 <br>
 <li><b>What will be the ouptut of the following function call: fun3(100); where fun3 is defined as: </b> </li>
diff --git a/src/lab/style.css b/src/lab/style.css
index 1cb602c0..1e1fa03b 100644
--- a/src/lab/style.css
+++ b/src/lab/style.css
@@ -1,4 +1,4 @@
-body {
+  body {
          background-color: #fff; /*#E4D8E5;*/
          /*rgba(250, 250, 255, 0.9);*/
          padding: 1em 1em 1em 1em;
