body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#main-container {
    text-align: center;
}

input[type="text"] {
    margin: 10px;
    padding: 10px;
    width: 200px;
}

button {
    padding: 10px 20px;
    cursor: pointer;
}

#userDetails {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ccc;
    display: inline-block;
}