diff --git a/main.html b/main.html
index e569d5db227dbfca90128f7765539cca869fc701..af74768fdd65f1e73b4e5bac4362194ee5516b60 100644
--- a/main.html
+++ b/main.html
@@ -1,152 +1,185 @@
 <!DOCTYPE html>
 <html lang="en">
-<head>
-   <meta charset="UTF-8">
-   <meta http-equiv="X-UA-Compatible" content="IE=edge">
-   <meta name="viewport" content="width=device-width, initial-scale=1.0">
-   <title>Sixth Sense</title>
-   <!-- bootstrap core css -->
-  <link rel="stylesheet" type="text/css" href="css/bootstrap.css" />
-  <!-- progress barstle -->
-  <!-- fonts style -->
-  <link href="https://fonts.googleapis.com/css?family=Poppins:400,700|Raleway:400,600&display=swap" rel="stylesheet">
-  <!-- font wesome stylesheet -->
-  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
-  <!-- Custom styles for this template -->
-  <link href="css/style.css" rel="stylesheet" />
-  <!-- responsive style -->
-  <link href="css/responsive.css" rel="stylesheet" />
-  <!-- activity.css -->
-  <link rel="stylesheet" href="css/activity_page.css">
-</head>
-<div class="top_container">
-    <!-- header section strats -->
-    <header class="header_section">
-      <div class="container">
-        <nav class="navbar navbar-expand-lg custom_nav-container ">
-          <a class="navbar-brand" href="main.html">
-            <span>
-                Sixth Sense
-            </span>
-          </a>
-          <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
-            aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
-            <span class="navbar-toggler-icon"></span>
-          </button>
-          <div class="collapse navbar-collapse" id="navbarSupportedContent">
-            <div class="d-flex ml-auto flex-column flex-lg-row align-items-center">
-              <ul class="navbar-nav  ">
-                <li class="nav-item active">
-                  <a class="nav-link" href="main.html"> Home <span class="sr-only">(current)</span></a>
-                </li>
-                <li class="nav-item">
-                    <a class="nav-link" href="alphabet.html"> Alphabets </a>
+  <head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Sixth Sense</title>
+    <link rel="icon" href="logo.PNG" type="image/PNG" />
+    <!-- Bootstrap core CSS -->
+    <link rel="stylesheet" type="text/css" href="bootstrap.css" />
+    <!-- Fonts style -->
+    <link
+      href="https://fonts.googleapis.com/css?family=Poppins:400,700|Raleway:400,600&display=swap"
+      rel="stylesheet"
+    />
+    <!-- Font Awesome stylesheet -->
+    <link
+      rel="stylesheet"
+      href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css"
+    />
+    <!-- Custom styles for this template -->
+    <link href="style.css" rel="stylesheet" />
+    <!-- Responsive style -->
+    <link href="css/responsive.css" rel="stylesheet" />
+    <!-- Activity CSS -->
+    <link rel="stylesheet" href="css/activity_page.css" />
+  </head>
+  <body>
+    <div class="top_container">
+      <!-- Header section starts -->
+      <header class="header_section">
+        <div class="container">
+          <nav class="navbar navbar-expand-lg custom_nav-container">
+            <a class="navbar-brand" href="main.html">
+              <span>Sixth Sense</span>
+            </a>
+            <button
+              class="navbar-toggler"
+              type="button"
+              data-toggle="collapse"
+              data-target="#navbarSupportedContent"
+              aria-controls="navbarSupportedContent"
+              aria-expanded="false"
+              aria-label="Toggle navigation"
+            >
+              <span class="navbar-toggler-icon"></span>
+            </button>
+            <div class="collapse navbar-collapse" id="navbarSupportedContent">
+              <div
+                class="d-flex ml-auto flex-column flex-lg-row align-items-center"
+              >
+                <ul class="navbar-nav">
+                  <li class="nav-item active">
+                    <a class="nav-link" href="main.html"
+                      >Home <span class="sr-only">(current)</span></a
+                    >
+                  </li>
+                  <li class="nav-item">
+                    <a class="nav-link" href="alphabet.html">Alphabets</a>
+                  </li>
+                  <li class="nav-item">
+                    <a class="nav-link" href="why.html">Why Us</a>
                   </li>
-                <li class="nav-item">
-                  <a class="nav-link" href="why.html"> Why Us </a>
-                </li>
-                <li class="nav-item">
-                  <a class="nav-link" href="contact.html">Contact Us</a>
-                </li>
-              </ul>
+                  <li class="nav-item">
+                    <a class="nav-link" href="contact.html">Contact Us</a>
+                  </li>
+                </ul>
+              </div>
             </div>
-        </nav>
-      </div>
-    </header>
-    <br>
+          </nav>
+        </div>
+      </header>
 
-    <section class="admission_section">
+      <section class="admission_section">
         <div class="container">
           <div class="row">
             <div class="col-md-6">
               <div class="admission_detail-box">
                 <h3>Animals</h3>
-                <p>
-                "Welcome to the amazing world of animals! From cuddly kittens to lions, and from tiny ants to enormous elephants, animals come in all shapes, sizes, and colors
-                . So let's discover the magic of language together, both spoken and signed language!"
-                </p>
                 <div class="image-container">
-                    <img src="dog.png" alt="Image">
-                    <div class="overlay">
-                    </div>
+                  <img src="dog.png" alt="Image" />
+                  <div class="layover"></div>
                 </div>
+                <p>
+                  "Welcome to the amazing world of animals! From cuddly kittens
+                  to lions, and from tiny ants to enormous elephants, animals
+                  come in all shapes, sizes, and colors. So let's discover the
+                  magic of language together, both spoken and signed language!"
+                </p>
                 <div class="">
-                  <a href="animal.html" class="call_to-btn btn_white-border">
-                    Start to Study
-                  </a>
+                  <a href="animal.html" class="call_to-btn btn_white-border"
+                    >Start to Study</a
+                  >
+                  <a href="greeting.html" class="call_to-btn btn_white-border"
+                    >Play Game</a
+                  >
                 </div>
               </div>
             </div>
             <div class="col-md-6">
               <div class="admission_img-container">
-                <img src="Animals.png" alt="" height="370" width="300">
+                <img src="animals.png" alt="" height="370" width="300" />
               </div>
             </div>
           </div>
         </div>
       </section>
+
       <section class="why_section">
         <div class="container">
           <div class="row">
             <div class="col-md-6">
               <div class="why_img-container">
-                <img src="greeting.png" alt="" height="370" width="300">
+                <img src="greeting.png" alt="" height="370" width="300" />
               </div>
             </div>
             <div class="col-md-6">
               <div class="why_detail-box">
                 <div class="image-container">
-                    <img src="welcome.png" alt="Image">
-                    <div class="overlay">
-                    </div>
+                  <img src="welcome.png" alt="Image" />
+                  <div class="layover"></div>
                 </div>
-                <h3>Greeting</h3>  
+                <h3>Greeting</h3>
                 <p>
-                    "Welcome to the exciting world of greetings! Greetings are how we say hello and show kindness to one another. 
-                     Whether you're meeting someone new or saying hello to a friend, learning how to greet others is an important part of 
-                     communication and showing respect. So let's discover the joy of saying hello, both with our words and with our hands!"
+                  "Welcome to the exciting world of greetings! Greetings are how
+                  we say hello and show kindness to one another. Whether you're
+                  meeting someone new or saying hello to a friend, learning how
+                  to greet others is an important part of communication and
+                  showing respect. So let's discover the joy of saying hello,
+                  both with our words and with our hands!"
                 </p>
                 <div class="">
-                  <a href="greeting.html" class="call_to-btn btn_white-border">
-                    Start to Study
-                  </a>
+                  <a href="greeting.html" class="call_to-btn btn_white-border"
+                    >Start to Study</a
+                  >
+                  <a
+                    href="greeting_game.html"
+                    class="call_to-btn btn_white-border"
+                    >Play Game</a
+                  >
                 </div>
               </div>
             </div>
           </div>
         </div>
       </section>
+
       <section class="determine_section">
         <div class="container">
           <div class="row">
             <div class="col-md-6">
               <div class="determine_detail-box">
                 <h3>Expression</h3>
-                <p>
-                    "Welcome to the fascinating world of expressions! Expressions are how we communicate our feelings and emotions, whether through words or gestures.
-                     So get ready to explore the wide range of expressions we use every day, 
-                     both in spoken language and in the language of signs!"
-                </p>
                 <div class="image-container">
-                    <img src="face.png" alt="Image">
-                    <div class="overlay">
-                    </div>
+                  <img src="face.png" alt="Image" />
+                  <div class="layover"></div>
                 </div>
+                <p>
+                  "Welcome to the fascinating world of expressions! Expressions
+                  are how we communicate our feelings and emotions, whether
+                  through words or gestures. So get ready to explore the wide
+                  range of expressions we use every day, both in spoken language
+                  and in the language of signs!"
+                </p>
                 <div class="">
-                  <a href="expression.html" class="call_to-btn btn_white-border">
-                    Start to Study
+                  <a href="expression.html" class="call_to-btn btn_white-border"
+                    >Start to Study</a
+                  >
+                  <a href="greeting.html" class="call_to-btn btn_white-border"
+                    >Play Game
                   </a>
                 </div>
               </div>
             </div>
             <div class="col-md-6">
               <div class="determine_img-container">
-                <img src="expression.png" alt="" height="370" width="300">
+                <img src="expression.png" alt="" height="370" width="300" />
               </div>
             </div>
           </div>
         </div>
       </section>
-      </div>
-</body>
-</html>
\ No newline at end of file
+    </div>
+  </body>
+</html>