body {
    font-family: Arial, sans-serif;
    margin: 40px;
    background-color: #f4f4f4;
}

h1 {
    color: #333;
}

form {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

label, input, textarea {
    display: block;
    width: 100%;
    margin-bottom: 20px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="submit"] {
    background-color: #007BFF;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

input[type="submit"]:hover {
    background-color: #0056b3;
}

#additional-presenters {
    width: 50%;
    margin: 20px auto;
    display: block;
    font-size: 1.1em;
}