Does anyone of you know any useful websites that teach HTML for free? Anything that isn't that complicated, and has spaces for beginners?
I highly suggest using https://www.freecodecamp.org/ They are an amazing, non-profit organization that teaches about web development. You can start it as an absolute beginner and come out of their courses with a lot of great knowledge. And the best part is that it's all totally free since it's backed by donations from the community.