function isSafari() {
var ua = navigator.userAgent;
var isiOS = /iPhone|iPad|iPod/i.test(ua);
var safari = /Safari/i.test(ua);
var other = /CriOS|Chrome|EdgiOS|FxiOS|OPiOS/i.test(ua);
return isiOS && safari && !other;
}
function closeDialog() {
document.getElementById("mask").style.display = "none";
}
if (!isSafari()) {
document.getElementById("mask").style.display = "flex";
}