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

.container {
    width: 50%;
    margin: 20px auto;
}

button {
    padding: 8px 20px;
    margin: 10px;
}

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

li {
    margin: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid #ccc;
    padding: 10px;
}