Very basic 4 things about html.

1. expansion of html?

Hyper Text Markup Language

2. why html is important in web development?

Because this is the backbone of web development. 100% of the websites use html.

3. Is html a programming language?

No. Its a markup language

4. What is  html 5?

There is no difference between html and html 5. html 5 is the latest version of html with newly added functionalities.

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