after I was able to solve some problems in a One Pager project with your help, I unfortunately come across two showstoppers again.
I can't solve the following problem even after a long research.
I use a LayoutGrid as a container for RWD content. The LayoutGrid has a color gradient as background. When shrinking the viewport (width) the height of the LayoutGrid increases. Unfortunately the height of the gradient does not adjust. It always has the same size and the RWD content runs out of this area.
How can I get the gradient of the layout grid to adapt to the current height of the layout grid?

This are the settingas of the LayoutGrid:

Also here I am happy about constructive hints.
Thank you.
Markus