Getting started with HTML - Learn web development | MDN
Assessment: Marking up a letter. https://developer.mozilla.org /en-US/docs/Learn/HTML/Introduction_to_HTML/Marking_up_a_letter - Learn - Mozilla Discourse
Getting started with HTML - Learn web development | MDN
Open the Inspector — Firefox Source Docs documentation
What are browser developer tools? - Learn web development | MDN
MDN Plus
Element - MDN Web Docs Glossary: Definitions of Web-related terms | MDN
Debugging HTML - Learn web development | MDN
CSS basics - Learn web development | MDN
Firefox Developer Edition
Firefox Developer Edition
Introduction - JavaScript | MDN
Modify a web page - Mozilla | MDN
HTML text fundamentals - Learn web development | MDN
Mozilla Launches A New MDN, MDN Plus Coming Soon - Phoronix
Examine and edit HTML — Firefox Source Docs documentation
What's in the head? Metadata in HTML - Learn web development | MDN
What's in the head? Metadata in HTML - Learn web development | MDN