5. [ Creating hyperlinks ](/en-US/docs/Learn/HTML/Introduction_to_HTML/Creating_hyperlinks)
    6. [ Advanced text formatting ](/en-US/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting)
    7. [ Document and website structure ](/en-US/docs/Learn/HTML/Introduction_to_HTML/Document_and_website_structure)
    8. [ Debugging HTML ](/en-US/docs/Learn/HTML/Introduction_to_HTML/Debugging_HTML)
    9. [ Marking up a letter ](/en-US/docs/Learn/HTML/Introduction_to_HTML/Marking_up_a_letter)
    10. [ Structuring a page of content ](/en-US/docs/Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content)
  5. Multimedia and embedding 
    1. [ Multimedia and embedding ](/en-US/docs/Learn/HTML/Multimedia_and_embedding)
    2. [ Images in HTML ](/en-US/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML)
    3. [ Video and audio content ](/en-US/docs/Learn/HTML/Multimedia_and_embedding/Video_and_audio_content)
    4. [ From object to iframe â other embedding technologies ](/en-US/docs/Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies)
    5. [ Adding vector graphics to the web ](/en-US/docs/Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web)
    6. [ Responsive images ](/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images)
    7. [ Mozilla splash page ](/en-US/docs/Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page)
  6. HTML tables 
    1. [ HTML tables ](/en-US/docs/Learn/HTML/Tables)
    2. [ HTML table basics ](/en-US/docs/Learn/HTML/Tables/Basics)
    3. [ HTML table advanced features and accessibility ](/en-US/docs/Learn/HTML/Tables/Advanced)
    4. [ Structuring planet data ](/en-US/docs/Learn/HTML/Tables/Structuring_planet_data)
  7. [ **CSS â Styling the web** ](/en-US/docs/Learn/CSS)
  8. CSS first steps 
    1. [ CSS first steps ](/en-US/docs/Learn/CSS/First_steps)
    2. [ What is CSS? ](/en-US/docs/Learn/CSS/First_steps/What_is_CSS)
    3. [ Getting started with CSS ](/en-US/docs/Learn/CSS/First_steps/Getting_started)
    4. [ How CSS is structured ](/en-US/docs/Learn/CSS/First_steps/How_CSS_is_structured)
    5. [ How CSS works ](/en-US/docs/Learn/CSS/First_steps/How_CSS_works)
    6. [ Styling a biography page ](/en-US/docs/Learn/CSS/First_steps/Styling_a_biography_page)
  9. CSS building blocks 
    1. [ CSS building blocks ](/en-US/docs/Learn/CSS/Building_blocks)
    2. [ CSS selectors ](/en-US/docs/Learn/CSS/Building_blocks/Selectors)
    3. [ Type, class, and ID selectors ](/en-US/docs/Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors)
    4. [ Attribute selectors ](/en-US/docs/Learn/CSS/Building_blocks/Selectors/Attribute_selectors)
    5. [ Pseudo-classes and pseudo-elements ](/en-US/docs/Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements)
    6. [ Combinators ](/en-US/docs/Learn/CSS/Building_blocks/Selectors/Combinators)
    7. [ Cascade, specificity, and inheritance ](/en-US/docs/Learn/CSS/Building_blocks/Cascade_and_inheritance)
    8. [ Cascade layers ](/en-US/docs/Learn/CSS/Building_blocks/Cascade_layers)
    9. [ The box model ](/en-US/docs/Learn/CSS/Building_blocks/The_box_model)
    10. [ Backgrounds and borders ](/en-US/docs/Learn/CSS/Building_blocks/Backgrounds_and_borders)
    11. [ Handling different text directions ](/en-US/docs/Learn/CSS/Building_blocks/Handling_different_text_directions)
    12. [ Overflowing content ](/en-US/docs/Learn/CSS/Building_blocks/Overflowing_content)
    13. [ CSS values and units ](/en-US/docs/Learn/CSS/Building_blocks/Values_and_units)
    14. [ Sizing items in CSS ](/en-US/docs/Learn/CSS/Building_blocks/Sizing_items_in_CSS)
    15. [ Images, media, and form elements ](/en-US/docs/Learn/CSS/Building_blocks/Images_media_form_elements)
    16. [ Styling tables ](/en-US/docs/Learn/CSS/Building_blocks/Styling_tables)
    17. [ Debugging CSS ](/en-US/docs/Learn/CSS/Building_blocks/Debugging_CSS)
    18. [ Organizing your CSS ](/en-US/docs/Learn/CSS/Building_blocks/Organizi