In addition to the cheatsheets I handed out in class, the best place to go for examples of all the code is the W3Schools.
These both have easy to follow tutorials at the WC that cover the basics of HTML and CSS.
These include all the code snippets in one sheet. (They’re both quite big though.)
Video and Other Online Courses
If you’re looking for a more in-depth look, there is a LinkedIn Learning course I can recommend:
HTML Essential Training with James Williamson: This covers much of the first couple weeks of our course.
Also, codecademy [free] is a great resource for learning code on your own, and you can sign up and do the courses for free.