body {
    font-family: Arial, sans-serif;
    text-align: center;
}

input {
    padding: 8px;
    margin-right: 5px;
}

button {
    padding: 8px;
    cursor: pointer;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin: 5px 0;
}