Responsive, flexbox and relative percantage usage

This project was easily to handle as I prepared myself with the projects I done before. I learned abit more from Kevin Powell about responsivness so I implemented that workflow in my current project. I started with Mobilefirst-Workflow.

My main focus was my HTML5 semantic and the overview on my CSS file. If you have guys have any suggestions about semantic or how I can describe things better in my CSS file - feel free.

I had alot of fun as I tryed to do this project with SASS & TailwindCSS but I found out that I have to reinforce the fundamentels of CSS to increase my efficiency with SASS or TailwindCSS.