Why is the bottom slider not showing in iOS?

Question

Joomla

Why is the bottom slide not showing up when viewed from a mobile phone?
www.glss-music.ru

Answer 1

You have there the display of this slider is implemented using the css-property opacity: 1; - and in Safari this property is, as far as I know, poorly supported - especially when used in conjunction with a transition. Try adding visibility:visible to the css properties of this element;
Taken from here and from here .