Remove space between slideshow and announcement banner

[tallowbar]

I have inserted a slideshow at the top of my webpage but now there is a white space between the announcement bar and the top of the slideshow section, see image. How can I close the gap so there's no white section?

[tallowbar]

tallowbar.com.au

[tallowbar]

wanted to add that it's fine on the mobile version, only the desktop one is not showing correctly

[tallowbar]

It didn't work it just made my whole website background black instead of white, I basically want to remove that spacing altogether rather than change the website background colour.

[tallowbar]

thank you that worked!