Make hotspot icon disappear after click

Help! I’m making a dropdown menu using hotspot. I’m using the + icon, and i want it to disappear upon clicking / the pop-up appearing. How do I do this?

Thanks!

@nothingburger You can find many such examples HTML/CSS code online.
Simple logic to implement :
On click:
– Hide icon
– Show popup

button.onclick = () => {
button.style.display = “none”;
popup.style.display = “block”;
};