@damien_kr Hey I tried figuring out the mistake but I couldn’t find it but i have linked my same project down below you can compare as well as fork it.
CodePen only expects content you would place within the body tags. Do not have <!DOCTYPE html><html><head>.
If you are wanting to link to any meta information, or stylesheets or_scripts_ you can do so in the settings window of the HTML (Click on the gear icon).
You should complete all of the User Stories in one go, then come back to fix failed tests. Your page is too small to pass User Story 7.