I have installed Sydney theme. In mobile version it seems that the image slider is showing up ON TOP of the menu! The images cover the menu, so the user cannot press/view the menu links.
(I tried using z-index:1 on but it doesn’t work. Also, I am not trying to customise the menu at all, it should work as-is, I should not have to tinker with the CSS.)
The only CSS customisation I have made is to make the site-logo bigger and the background colour of the header-wrap to be 70% opacity.
I wonder if this is a bug? The url is this: http://archivafn.com
Thank you for your help.