add-persons/index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Js ES6 Classes</title>
    <link rel="stylesheet" href="https://unpkg.com/mustard-ui@latest/dist/css/mustard-ui.min.css">
    <link rel="stylesheet" href="css/style.css">
</head>

<body>
    <div class="alert-wrap"></div>
    <div class="modal-mask">
        <div class="modal">
            <div class="modal-head">
                <p class="modal-title">List of persons</p>
            </div>
            <div class="modal-body">
                <table>
                    <thead>
                        <tr>
                            <th>FirstName</th>
                            <th>Surname</th>
                            <th>Age</th>
                            <th class="align-right">Job</th>
                        </tr>
                    </thead>
                    <tbody></tbody>
                </table>
            </div>
            <div class="modal-footer">
                <button class="button-danger btn-close">Close</button>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-lg-4 col-lg-offset-4">
            <div class="wrap-show">
                <button class="button-warning button-round btn-show">Show Persons</button>
            </div>
            <form>
                <h2>Add new person</h2>
                <label for="name">Firstname</label>
                <input required id="name" type="text">
                <label for="surname">Surname</label>
                <input required id="surname" type="text">
                <label for="age">Age</label>
                <input required id="age" type="text">
                <label for="job">Job</label>
                <input required id="job" type="text">
                <button class="button-primary button-round" type="submit">Add person</button>
            </form>
        </div>
    </div>
    <script src="js/index.js"></script>
</body>

</html>