@naturalle… this seems too simple… This gives a block of color behind each post in my test. I added in the padding because I thought it needed it. You can take that part out or play with the numbers. Of course you will want to choose your own color.
@falconsfables, I checked the blog linked to your username and I see that http://falconsfables.org/ is currently using the Lifestyle theme and no footer widgets. It looks like you worked around the issue by changing themes or adding widgets to the sidebar instead of the footer. If you still need help, please reply back here, verify the link of the blog you are working on, and set the topic status to “not resolved.”