Trouble with Block-Title Background-Color

Dear Staff,

I have a problem with the Block-Title Background-Color.
Any changes I made will not affect the background of the rectangle behind the title.
Just the line is changing and the text color.

my website:

http://www.dansports.de

This is how it looks:

https://picload.org/view/ddprgiia/title-bg-color.png.html

and this how it should look like:

https://picload.org/view/ddprgiil/should-look-like.png.html

I would like to have any individual color per block-title like in demo:

https://demo.tagdiv.com/newspaper/

Hope you can help me =)

Ok, it’s done. I found the problem.