    <style>




        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            margin: 0;
            padding: 0;
        }

       

        h1 {
            margin: 0;
        }

        .container {
            max-width: 800px;
            margin: 20px auto;
            padding: 20px;
            background-color: #fff;
            border-radius: 5px;
            box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.2);
        }

        .product-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .product {
            background-color: #fff;
            border: 1px solid #ddd;
            border-radius: 5px;
            padding: 20px;
            text-align: center;
            width: 200px;
            margin: 10px;
            box-shadow: 0px 0px 5px 0px rgba(0,0,0,0.2);
        }

        .product h2 {
            margin: 0;
        }

        .product p {
            margin: 0;
            color: #777;
        }

        .product label {
            font-weight: bold;
        }

        .product input[type="number"] {
            width: 50px;
        }

        .product .kleur-opties {
            margin-top: 10px;
        }

        .product .kleur-opties label {
            margin-right: 5px;
        }

        .product button {
            background-color: #333;
            color: #fff;
            border: none;
            padding: 5px 10px;
            cursor: pointer;
            margin-top: 10px;
        }

        .product button:hover {
            background-color: #555;
        }
    </style>