1. What is HTML?
2. What is the purpose of HTML?
3. What are HTML files?
4. Creating HTML files?
5. Creating Valid HTML Documents
6. HTML Elements
   1. Block vs Inline Tags
   2. Semantic Tags
   3. Attributes
   4. Working with Media
   5. Working with Forms
   6. Presenting Tabular data
   7. Embedding Webpages in Webpages
   8. Handling Accessibility
7. Linking HTML files to form Websites
8. How to style HTML
9. Add JavaScript to HTML
10. Deploying HTML
11. Generating HTML from Apps
12. Validating HTML
13. Optimizing HTML for Search Engines

https://twitter.com/iam_chonchol/status/1621455511337193475?s=20

Step 1 - Learn HTML