Scroll down button on advanced layer slider

Hi there,

I would like to have a scroll down button on my advanced layer slider.
I already read this thread: https://kriesi.at/support/topic/add-scroll-down-arrow-button-on-advance-layerslider/

I already add the html to a text block in a new layer and added the code the Quick CSS.

It doesn’t show the arrow, so it has probably todo with the two color sections that needs to be added.
Can someone tell me how to create these ‘color sections’?

Thank you in advance.

Regards,

Filly