diff --git a/src/lab/exp5/content.html b/src/lab/exp5/content.html
index 7213a38..accdc03 100755
--- a/src/lab/exp5/content.html
+++ b/src/lab/exp5/content.html
@@ -1,4 +1,4 @@
-<!-- This file needs to be edited by the lab developer to suit
+<!-- This file needs to be edited by the lab developer to suit
 the requirements of their lab in particular.-->
 
 <!-- Add class="default" to include any element as it is
@@ -78,7 +78,7 @@
           <div id="experiment-article-section-1-icon" 
           class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img href="https://image.flaticon.com/icons/svg/1006/1006080.svg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -108,7 +108,7 @@
         <div id="experiment-article-section-2-icon" 
         class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img href="https://image.flaticon.com/icons/svg/992/992580.svg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -200,7 +200,7 @@
         <div id="experiment-article-section-3-icon" 
         class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img href="https://www.flaticon.com/premium-icon/icons/svg/1171/1171952.svg" />
 	</div>
      
         <div id="experiment-article-section-3-heading" 
@@ -229,7 +229,7 @@
         <div id="experiment-article-section-4-icon" 
         class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img href="https://image.flaticon.com/icons/svg/1792/1792292.svg" />
 	</div>
 
         <div id="experiment-article-section-4-heading" 
@@ -251,7 +251,7 @@
         <div id="experiment-article-section-5-icon" 
         class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img href="https://image.flaticon.com/icons/svg/1454/1454726.svg" />
 	</div>
 
         <div id="experiment-article-section-5-heading" 
@@ -279,7 +279,7 @@
           <div id="experiment-article-section-6-icon" 
           class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img href="https://www.flaticon.com/premium-icon/icons/svg/1770/1770571.svg" />
 	  </div>
 
           <div id="experiment-article-section-6-heading" 
@@ -481,7 +481,7 @@ <h2>Solutions</h2><br><p>
           <div id="experiment-article-section-8-icon" 
           class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img href="https://www.flaticon.com/premium-icon/icons/svg/613/613307.svg" />
 	  </div>
 
           <div id="experiment-article-section-8-heading" 
@@ -512,7 +512,7 @@ <h2> Book References:</h2><br><p>
           <div id="experiment-article-section-9-icon" 
           class="icon"> -->
 	    <!-- Enclose the icon image of your lab. -->
-	<!--    <img src="../images/experiments.jpg" />
+	<!--    <img href="https://www.flaticon.com/premium-icon/icons/svg/1779/1779011.svg" />
 	  </div>
 	
           <div id="experiment-article-section-9-heading" 
@@ -579,7 +579,7 @@ <h2> Book References:</h2><br><p>
           <div id="experiment-article-section-10-icon" 
           class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/feedback.jpg" />
+	    <img href="https://image.flaticon.com/icons/svg/1034/1034147.svg" />
 	  </div>
 	
           <div id="experiment-article-section-10-heading"