After you moved over HTML tutorial from WCS, check this list to see if you get all this things, if no, just move back and try them once more time:

1. What is HTML
2. HTML Tags (XML like structure)
3. HTML Elements
   1. Always lowercase
   2. Always quote attributes
   3. Attributes reference (class, id, title)
   1. Doctypes
   2. HTML main structure (html, head, body)
   3. Headings
   4. Lines
   5. Comments
   6. Paragraphs
   7. Line break
   8. Text formatting (b, i, u, strong, em)
   9. Links
   10. Images
   11. Tables
   12. Lists
       1. Ordered
       2. Unordered
       3. Definition
   13. Forms
       1. Input text
       2. Input button
       3. Input password
       4. Textarea
       5. Checkbox
       6. Radiobox
       7. Selectlist
       8. Submit button
   14. Frames (never use them!)
   15. Iframes
   16. Entities (ASCII instead of value)
   17. Many other elements in HTML5 (advanced)
4. Head
   1. Meta
   2. Title
   3. Scripts
   4. Links
5. Adding CSS
   1. As link
   2. In header
   3. For each element