I have a problem...
Well now, I understood how to make the parallax on a main timeline:
js: ok with Safari / Chrome I scroller BUT ...
When I put an HTML widget (with soundcloud and control pause and play button more ... for example) the scroll stopped working only in firefox.
What's weird is that I put losque an object (rectangle / circle ...) over the html widget ... the scroll to another page in parallax mode works.
How to impose scroll across the page and in html widget (firefox of course)?
(i've HYPE3PRO/Yosemite 10.10.5)