body {
    font-family: Arial;
    background: #f4f4f4;
}

.container {
    display: flex;
}

.products, .cart {
    flex: 1;
    padding: 20px;
    background: white;
    margin: 10px;
}

.product {
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
}