body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    text-align: center;
    padding: 50px;
}

form {
    display: inline-block;
    padding: 20px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
}

input {
    margin: 10px 0;
    padding: 10px;
    width: 100%;
    box-sizing: border-box;
}

button {
    background-color: #5cb85c;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}