Google Maps markers not rendered correctly on Android

Question

On my website I use ruby on rails and the gem gmap4rails to render my Google Maps with markers. Now today, one of my visitors contacted me to report a problem with the rendering of the markers on his android phone. See here the result :

Does anybody know why the rendering of the markers gives this result?

Answer 1

After some debugging, I discovered that I put a special style on an img on this page using the global img tag, with the fact that it added also this style to the markers.

I changed my style to a special class to apply it and now it works.