What the use of UTF-8 ?

Question

I'm not cleared in html

Answer 1

" The first thing done on a page is usually indicating the character set that is used. In previous versions of HTML, it was done using a very complex <meta> element. Now, it is very simple:
<meta charset="UTF-8"> "
source: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/HTML5/Introduction_to_HTML5

More about:

https://en.m.wikipedia.org/wiki/UTF-8

https://www.w3schools.com/tags/att_meta_charset.asp