let qr = new QRCode(document.getElementById("qr-code"), {
    text: "https://yourwebsite.com",
    width: 200,
    height: 200
});

// Overlay a logo
let logo = document.createElement("img");
logo.src = "your-logo.png"; 
logo.style.position = "absolute";
logo.style.width = "40px";
logo.style.left = "50%";
logo.style.top = "50%";
logo.style.transform = "translate(-50%, -50%)";
document.getElementById("qr-code").appendChild(logo);