body {
    font-family: Arial, sans-serif;
    text-align: center;
}
#container {
    width: 300px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f0f0f0;
    border-radius: 5px;
}
h1 {
    color: #333;
}
label {
    font-weight: bold;
}
input[type="text"] {
    width: 100%;
    padding: 5px;
    margin-bottom: 10px;
}
button {
    background-color: #0074d9;
    color: #fff;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
}