diff --git a/Course.php b/Course.php
index 9ba9f86..d735c3f 100644
--- a/Course.php
+++ b/Course.php
@@ -153,7 +153,7 @@ if( $_SESSION['user_type'] == "Student")
 			    $att3=$row['Attachment_link_3'];
 			    $att4=$row['Attachment_link_4'];
 			    $labid=$row['Lab_Report_ID'];
-
+			    $days_remaining = date_diff(date_create($deadline), date_create())->format('%a days, %h hours, %i minutes');
 			    $full_link = "<a href='~\..\Lab_Report_Assignments\\$att1'>$att1</a>";      
                             
 			    if($att2!=""){
@@ -166,10 +166,11 @@ if( $_SESSION['user_type'] == "Student")
 			    if($att4!=""){
 				$full_link= $full_link."| <a href='~\..\Lab_Report_Assignments\\$att4'>$att4</a>";    
 			    }
-			    echo "   <k href='#'>   <div class='btn btn-default break-word' style='dislay:block; word-wrap: break-word; border: 1px solid #F0F0F0;border-left: 4px solid #03407B;'>
+			    echo "<div class='btn btn-default break-word' style='dislay:block; word-wrap: break-word; border-left:4px solid #e6f2ff;'>
+                                      <div class='alert alert-warning'>Time left: $days_remaining</div>
   $title ($Marks Marks, $type) <br> <span style='font-size:8pt'> $ins</span>
-   <br> <span style='font-size:8pt'>Posted:$posted &nbsp; Deadline:$deadline   &nbsp; &nbsp;&nbsp;&nbsp; &nbsp;<a href='~\..\SubmitLab.php?id=$labid&url=$url' class='btn-sm btn-info' style='margin-left:50px;'>Submit</a><br> Attachments : $full_link </span>
-</div></k>";
+   <br> <span style='font-size:10pt'>Posted:$posted &nbsp; Deadline:$deadline   &nbsp; &nbsp;&nbsp;&nbsp; &nbsp;<a href='~\..\SubmitLab.php?id=$labid&url=$url' class='btn-sm btn-info' style='margin-left:50px;'>Submit</a><br> Attachments : $full_link </span>
+</div>";
 			    
 		    }}
 		    echo "";
@@ -198,7 +199,7 @@ Lab_Report_ID not in (select Lab_Report_ID from lab_report_submissions where (St
 
 		    if(mysqli_num_rows($result)==0)
 		    {
-			echo "You missed no lab reports in this course.";
+			echo '<div class="alert alert-info">You missed no lab reports.</div>';
 			
 		    } else {
 			while($row = mysqli_fetch_assoc($result)) {
@@ -257,7 +258,7 @@ Lab_Report_ID not in (select Lab_Report_ID from lab_report_submissions where (St
 
 		    if(mysqli_num_rows($resultx)==0)
 		    {
-			echo "You have no lab report submissions in this course.";
+			echo '<div class="alert alert-info">You have no unmarked submissions. Check the Marked tab for your marked submissions (if any).</div>';
 			
 		    } else {
 			while($row = mysqli_fetch_assoc($resultx)) {
@@ -381,7 +382,7 @@ where Lab_Report_ID=$lab_repo_id and (lab_report_submissions.Student_id='$studen
 
 		    if(mysqli_num_rows($resultx)==0)
 		    {
-			echo "You have no marked submissions in this course";
+			echo '<div class="alert alert-info">You have no marked submissions.</div>';
 			
 		    } else { while($row = mysqli_fetch_assoc($resultx)) {
 			$title=$row['Lab_Title'];