diff --git a/index.php b/index.php
index 66f1481..3b6ee50 100644
--- a/index.php
+++ b/index.php
@@ -1,81 +1,85 @@
 <?php
-$page='Home';
-include '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");
 }
 ?>
 
+<br><br><br>
 <br><br><br>
 <div class="row" style="width:80%;margin:auto;">
 
-    <div class="col-md-4">
+  <div class="col-md-4">
     <br><br>
     <img src="logo_text.png" style="width">
     <h1> Lab Report Repository  </h1>
     <br><br>
-    </div>
-    
-    
-    <div class="col-md-4 list-group">
+  </div>
+
+
+  <div class="col-md-4 list-group">
 
     <br>
-   
+
     <h4 class="list-group-item active"> 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 / Email
-    <input type="text" name="user" placeholder="Email / Student Number" class="form-control" required="required" />
- 
-    Password
-    <input type="password" class="form-control"  name="password" placeholder="password" required="required" />
-    <br> 
-    <input type="submit" class="btn btn-primary" value="Login"><br> <a href="recover_password.php" style="font-weight:normal;color:gray">Reset my password</a>
+	<form method="post" action="Script.php" name="frm_login">
+	  <input type="hidden" name="frm_login" value="true"/>
+	  Student ID / Email
+	  <input type="text" name="user" placeholder="Email / Student Number" class="form-control" required="required" />
+
+	  Password
+	  <input type="password" class="form-control"  name="password" placeholder="password" required="required" />
+	  <br> 
+	  <input type="submit" class="btn btn-primary" value="Login"><br> <a href="recover_password.php" style="font-weight:normal;color:gray">Reset my password</a>
 
 
-    <?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);
 
-    </form>
-
-</div>
-</div>
-</div>
+	    if(isset($_SESSION['info_login'])) {
+            echo  '<hr><div class="alert alert-danger" role="alert">'.$_SESSION['info_login'].'</div>';
+            $_SESSION['info_login'] = null;
+	    }
 
 
-<div class="col-md-4 list-group">
+	    // wrong password
+	    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;
+	    }
+
+
+	    ?>
+
+	</form>
+
+      </div>
+
+    </div>
+
+  </div>
+
+
+  <div class="col-md-4 list-group">
 
     <br>
     <h4 class="list-group-item active"> Sign up </h4>
@@ -83,50 +87,53 @@ if (isset($_SESSION["user_fullname"])) {
 
     <form method="post" action="Script.php" name="frm_signup_1">
     <input type="hidden" name="frm_signup_1" value="true"/>
-    
-    Student ID
-    <input type="text" name="student_id" placeholder="Entre your Student ID" class="form-control" required="">
-    <br>
 
-    <div class="btnsignup" style="padding-top:58px">
-    <input type="submit" name="frm_signup_1" class="btn btn-primary" value="Next"> <br> Click Next to set up password
+	Student ID
+	<input type="text" name="student_id" placeholder="Entre your student ID" class="form-control" required="">
+	<br>
+
+	<div class="btnsignup" style="padding-top:58px">
+	  <input type="submit" name="frm_signup_1" class="btn btn-primary" value="Next"> <br> Click Next to set up password
 
 
-    <?php 
-    
-    error_reporting(E_ALL);
-    if(isset($_SESSION['info_signup1'])) {
-        echo  '<div class="alert alert-danger" role="alert">'.$_SESSION['info_signup1'].'</div>';
-        $_SESSION['info_signup1']=null;
-    }
-    
-    ?>
-      
+	  <?php 
+
+	    error_reporting(E_ALL);
+	    if(isset($_SESSION['info_signup1'])) {
+            echo  '<div class="alert alert-danger" role="alert">'.$_SESSION['info_signup1'].'</div>';
+            $_SESSION['info_signup1'] = null;
+	    }
+
+      ?>
+
+	</div>
+      </form>
+
     </div>
-    </form>
+
+  </div>
 
 </div>
-</div>
-</div>
 
 
-<hr>
-
 <div style="" id="footer">
-    LRRS 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  lanhui _at_ zjnu.edu.cn.  Last updated on 18/04/2020 by Ashly. <a href="./homepage" style="color:white;">More information ...</a>
-    </div>
+  LRRS 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  lanhui _at_ zjnu.edu.cn.
+  Last updated on 18/04/2020 by Ashly. <a href="./homepage" style="color:white;">More information ...</a>
+</div>
 
-    </body>
+</body>
 
 <style>
-#footer{
-position:fixed;
-bottom:0;
-left:0;
-background-color:#03417C;
-color:#FFF;
-text-align:center;
-width:100%;
-}
+  #footer {
+    position:fixed;
+    bottom:0;
+    left:0;
+    background-color:#03417C;
+    color:#e0e0e0;
+    text-align:center;
+    width:100%;
+  }
 </style>
+
 </html>