Thank you to everyone for answering ! Your help is precious and I hope I will have the opportunity to help back, although I am clearly less skilled with these.
But now, I am facing another sound problem (I am not expert with JS). This function is working fine on desktop and mobile :
var myAudio = document.getElementById("sound");
But this function is not working on mobile, only on desktop :
Could you help me to understand how to make it works ? Basically, I want to dim the sound when one is clicking something.
Thank you to !