This is probably the gentlest introduction I've ever seen on HTML. No fancy features at all, but it gives a good outline, with examples, of how the basic HTML document structure works.
See
A gentle introduction to HTML#
technology #
HTML #
tutorial #
web #
browsers ![Bild/Foto](https://opensource.com/sites/default/files/lead-images/browser_web_internet_website.png)
Learn the markup language of the web.