Browser zoom change button positions

I have a problem with one of our games at FORM https://playcanvas.com/project/579866/overview/formit-sim30 because when users have a browser zoom below 100% the buttons appear in a weird position.

100%

80%

We create the code based on you tutorial https://playcanvas.com/project/558460/overview/tutorial-world-to-element and the same is happening when the zoom is below 100%

100%

80%

We already tried the option “device pixel ratio” in the rendering options but the problem is there.

Do you have any solution to it?
Thanks.

I also read aboout the same problem on this link:

but the bug wasn’t solved