index.html

<!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">
    <link rel="shortcut icon" href="./public/img/logo.png" type="image/png">
    <link rel="stylesheet" href="./public/css/style.css">
    <title>Flip Text</title>
</head>
<body>

    <div class="container">
        <div id="heading"></div>
        <div class="box">
            <div class="boxOne">
                <input type="text" id="text" placeholder="flip text">
            </div>
            <button id="flipBtn"></button>
            <div class="boxTwo">
                <div class="result"></div>
                <button id="copyBtn"></button>
            </div>
        </div>
    </div>

    <script src="./public/js/main.js"></script>
</body>
</html>