Make an account here if you haven't already: https://www.freecodecamp.org/learn

Look under "Legacy Responsive Web Design Certification".

You need to do all the "Basic CSS" exercises

Please submit a link to your profile. E.g https://www.freecodecamp.org/fccfda32191-55c2-49ec-b6f4-26719c1dd7f4

To make your profile useful, you need to go into your FreeCodeCamp settings and set all your privacy settings to "Public".