Revslider apply hover effect to more than 1 layer


I am using revslider 5 and I’m not sure if this is the right/best place to be posting this, but hoping someone can help me!

There are 2 layers in the top left corner, a square “shape” with a rounded border and a cross “object”.

When I hover over the shape the background colour changes to blue

But, when I hover over the cross object the background doesn’t change because technically I’m no longer hovering over the shape, I’m hovering over the object.

I need the background colour of the shape to change when I’m hovering over the object, is there a way that this can be done, using css, merging layers or something…?

Appreciate any help anyone can give me!