MDN — HTML Reference
This page contains information on the following topics:
- What is HTML?
- What are HTML elements?
- Additional HTML Documentation
The first two paragraphs explain what HTML is and why it exists, and the next two paragraphs explain what HTML elements are and how they work.
MDN — CSS Reference
This page contains information on the following topics:
- What is CSS?
- How does CSS versioning work?
- Additional CSS Documentation
The first paragraph explains what CSS is and why it exists, and the next two paragraphs explain how CSS versioning works and why it is so.
Summary
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