diff --git a/index.php b/index.php
index fb035cc..f8dd3fc 100644
--- a/index.php
+++ b/index.php
@@ -1,11 +1,11 @@
 <?php
-  $page='Home';
-  require 'Header.php';
-  session_start();
+$page='Home';
+require 'Header.php';
+session_start();
 ?>
 
 <?php
-  // if the user has already logged in, then clicking the LRRS icon should not display the login page (i.e., index.php).
+// if the user has already logged in, then clicking the LRRS icon should not display the login page (i.e., index.php).
 if (isset($_SESSION["user_fullname"])) {
     header("Location: Courses.php");
 }
@@ -14,67 +14,67 @@ if (isset($_SESSION["user_fullname"])) {
 <br><br><br>
 
 <div class="row" style="width:85%;margin:auto;">
-  <div class="col-md-4">
-    <br><br>
-    <img src="logo.png" style="width:40%; position:relative; right:-95px; top:1px;">
-    <br><br>
-    <div style="width:20%; position:relative; right:-90px; font-family: Poppins-Regular;">
-    <h1>Lab Report Repository</h1>
-    <br><br>
-    </div>
+    <div class="col-md-4">
+	<br><br>
+	<img src="logo.png" style="width:40%; position:relative; right:-95px; top:1px;">
+	<br><br>
+	<div style="width:20%; position:relative; right:-90px; font-family: Poppins-Regular;">
+	    <h1>Lab Report Repository</h1>
+	    <br><br>
+	</div>
     </div>
     <br>
     <div style = "position:relative; left:240px; top:-2px;">
-    <h4 class="list-group-item active" style="font-weight:normal;font-family: Poppins-Regular;"> Sign in </h4>
-    <div class="list-group-item">
+	<h4 class="list-group-item active" style="font-weight:normal;font-family: Poppins-Regular;"> Sign in </h4>
+	<div class="list-group-item">
 
-    <div class="panel-body">
+	    <div class="panel-body">
 
-    <form method="post" action="Script.php" name="frm_login">
-    <input type="hidden" name="frm_login" value="true"/>
-    Student ID / Instructor Email
-    <input type="text" name="user" placeholder="Email / Student Number" class="form-control" required="required" id="user_name" />
-    <br>
-    Password
-    <input type="password" class="form-control"  name="password" placeholder="password" required="required" id="user_password" />
-    <div class="text-center">
-    <br><input type="submit" class="btn-primary" value="Login" id="login_btn">
-    </div>
-    <br> <a href="recover_password.php" style="font-weight:normal;color:#2471A3; font-family: Poppins-Regular;
-    font-size: 17px;">Reset my password</a>
-    <div class="text-center">
-    <br><span class="txt1">Don't have an account?</span>
-         <a class="txt2" href="signup.php" style="font-weight:normal" id="signup_link">Sign Up</a>
-        </a>
-    </div>
+		<form method="post" action="Script.php" name="frm_login">
+		    <input type="hidden" name="frm_login" value="true"/>
+		    Student ID / Instructor Email
+		    <input type="text" name="user" placeholder="Email / Student Number" class="form-control" required="required" id="user_name" />
+		    <br>
+		    Password
+		    <input type="password" class="form-control"  name="password" placeholder="password" required="required" id="user_password" />
+		    <div class="text-center">
+			<br><input type="submit" class="btn-primary" value="Login" id="login_btn">
+		    </div>
+		    <br> <a href="recover_password.php" style="font-weight:normal;color:#2471A3; font-family: Poppins-Regular;
+				  font-size: 17px;">Reset my password</a>
+		    <div class="text-center">
+			<br><span class="txt1">Don't have an account?</span>
+			<a class="txt2" href="signup.php" style="font-weight:normal" id="signup_link">Sign Up</a>
+		    </a>
+		    </div>
 
-    <?php 
-    
-    error_reporting(E_ALL);
-    
-    if(isset($_SESSION['info_login'])) {
-        echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['info_login'].'</div>';
-        $_SESSION['info_login']=null;
-    }
-    
-    
-    // wrong pass
-    if(isset($_SESSION['wrong_pass'])) {
-        echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['wrong_pass'].'</div>';
-        $_SESSION['wrong_pass']=null;
-    }
-    
-    
-    if(isset($_SESSION['infoChangePassword'])) {
-        echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['infoChangePassword'].'</div>';
-        $_SESSION['infoChangePassword']=null;
-    }
-    ?>
-      
+		    <?php 
+		    
+		    error_reporting(E_ALL);
+		    
+		    if(isset($_SESSION['info_login'])) {
+			echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['info_login'].'</div>';
+			$_SESSION['info_login']=null;
+		    }
+		    
+		    
+		    // wrong pass
+		    if(isset($_SESSION['wrong_pass'])) {
+			echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['wrong_pass'].'</div>';
+			$_SESSION['wrong_pass']=null;
+		    }
+		    
+		    
+		    if(isset($_SESSION['infoChangePassword'])) {
+			echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['infoChangePassword'].'</div>';
+			$_SESSION['infoChangePassword']=null;
+		    }
+		    ?>
+
+	    </div>
+		</form>
+	</div>
     </div>
-    </form>
-    </div>
-</div>
 </div>
 </div>
 
@@ -82,7 +82,7 @@ if (isset($_SESSION["user_fullname"])) {
 
 
 <div id="footer">
-  LRR was originally developed as a <a href="http://lanlab.org/course/2018f/se/homepage.html" style="color:white;">software engineering course project</a> by Mohamed Nor and Elmahdi Houzi.  Please submit your suggestions or bug reports to Mr Lan. <a href="./homepage" style="color:white;">More information ...</a>
+    LRR was originally developed as a <a href="http://lanlab.org/course/2018f/se/homepage.html" style="color:white;">software engineering course project</a> by Mohamed Nor and Elmahdi Houzi.  Please submit your suggestions or bug reports to Mr Lan. <a href="./homepage" style="color:white;">More information ...</a>
 </div>
 
 </body>