index.html

<!doctype html>
<html lang="en-US">

<head>
    <title>gilgeekify</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.2/font/bootstrap-icons.css">
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Dosis">
    <link rel="stylesheet" href="style.css">
</head>

<body>
    <div id="username-field">
        <h1>Please Choose A Username</h1>
        <label for="username"><i class="bi bi-person-circle"></i></label>
        <input type="text" id="username" placeholder="Username">
        <h6>Vanilla JavaScript - Live Username Checker From JSON File</h6>
    </div>
    <script src="app.js"></script>
</body>

</html>