Header showing over slider on mobile version

Hello - My Header is showing over the slider when I open the site www.corsewerks.com on mobile. Any idea why this would be and how to fix this? Appreciate the help.

Is it black also?

Not sure what you mean? I just need the slider which is showing under the header bar to be fixed so its under the header bar. This issue only exists on the mobile, on my desktop, it shows correctly.

It will be handled in the next update.