body {
    font-family: Arial;
    background: #f5f5f5;
    text-align: center;
}

.container {
    margin-top: 100px;
}

input {
    width: 300px;
    padding: 10px;
}

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

li {
    list-style: none;
    margin: 10px;
}