Hi Yuri and hi everyone,
I’m glad to say I found a solution by myself… I added some new css here in index.html,
it was:
<div id="b1" onclick="b1changeColor()" >
<div id="b1Text" style="display:none; padding-top:36%;">
battery
</div>
</div>
NOW:
<div id="b1"style="position: absolute; cursor: pointer; user-select: none" onclick="b1changeColor()" >
<div id="b1Text" style="display:none; padding-top:36%;">
battery
</div>
</div>
In other words, I added position: absolute to the annotation div. Hope it helps someone. Cheers – N