body {
    font-family: Arial;
    text-align: center;
    background-color: #f2f2f2;
}

input {
    padding: 10px;
    width: 200px;
}

button {
    padding: 10px;
}

li {
    list-style: none;
    background: white;
    margin: 10px;
    padding: 10px;
    border-radius: 5px;
}