index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="styles.css">
    <title>Simon Game</title>
</head>
<body>

    <div class = "heading">
    <h1><a href="./instruction.html" style="color: #FEFBD1; text-decoration: none; display: inline-block;" target="_blank">The Simon Game</a></h1>
    <h2>Press any key to start or click here</h2>
    </div>  

    <div class="button">
        <div class = "red"><button id = "red" class = "btn" style="background-color: red;"></button></div>
        <div class = "blue"><button id = "blue" class = "btn" style="background-color: blue;"></button></div>
        <div class = "yellow"><button id = "yellow" class = "btn" style="background-color: yellow;"></button></div>
        <div class = "green"><button id = "green" class = "btn" style="background-color: green;"></button></div>
    </div>

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
    <script src="./game.js"></script>

    <div class = "footer">
    <footer>Made by Shaunish Sharma</footer>
    </div>

</body>
</html>