body {
    font-family: Arial, sans-serif;
    margin: 20px;
}

h2 {
    margin-top: 30px;
}

button {
    margin: 5px;
    padding: 5px 10px;
}

input,
select {
    margin: 5px;
    padding: 5px;
}

.product,
.cart-item {
    border: 1px solid #ccc;
    padding: 10px;
    margin: 5px;
}