title: Replace google map MARKER with HTML element
body: <p>I want to add a custom HTML element (that can become transparent dynamically) instead of a marker.</p>
  
  <p>Basically my html object would be a cirle (or rounded pin) with a picture of users in the middle.</p>
  
  <p>I have imagined different solutions:</p>
  
  <p>place a label (containing HTML) covering the marker which visibility would be set to none
  work with overlays
  hard way: replace the marker with a PNG image that I should compose dynamically with some sort of library superimposing two images (one geometric and the other user picture).
  Anyway I can't figure out what to do and how to do it.</p>
  
  <p>Thanks, Stefano</p>