Adjust CSS to make a slider responsive

For additinal info read this: I have a problem with the position of the slider with smartphones etc (see also attachment). Somehow the slider moves over the text and the first text block of the site disappears. I checked the resolution for site [login to view URL] with this test tool: [login to view URL] But I see that the it's only responsive from 1028. On a second look you can see it's still responsive in all devices but somehow an extra (grey) part of the slider is shown. In other words the slider goes back to it's original dimensions (it (valera theme)has made been smaller for the client) . It need to be fixed first at the development site and then copied to development. P.S. the theme says it has build in responsiveness [login to view URL] [login to view URL] Regards, Peter Development site is [login to view URL] I need this job done in one week. This includes implementation on the production site.