Technical documentation page (facing Problem)

hi everyone!
i’m facing difficulty to pass media query challenge . so please guide me by checking my code and tell me about what mistake i am making.
link of the technical documentation page:
https://www.freecodecamp.org/learn/responsive-web-design/responsive-web-design-projects/build-a-technical-documentation-page

Hey there :wave:

Could you share the code your working with? When you post it, format it by copy/pasting it between two rows of three backticks. Like this:

```
your code here
```