Learn to structure a page with semantic HTML, lay it out with Flexbox and Grid, then check what you picked up with a short quiz.
A good web page starts with meaningful HTML and a layout that adapts to the screen. This collection covers both: semantic elements that search engines and screen readers understand, Flexbox for one-dimensional layouts, and two small CSS Grid snippets you will reuse constantly.
The quiz at the end also touches on HTTP status codes, methods and cookies, the basics every web developer meets sooner or later.