I struggle to figure this out. how to start is a problem. please help

Step 18

The text is centered again so the link to the CSS file is working. Add another style to the file that changes the background-color property to brown for the body element.

Hi there and welcome to our community!

We’ll need more information to go on, such as seeing your code and a link to the challenge.

The easiest way to do this is to click the Help button, which appears after you have submitted incorrect code three times.
This will create a forum post which automatically includes your full code, a direct link to the challenge, and an opportunity for you to describe your issue in detail.