How to change fonts

Answer 1

Learn CSS and you will know about text formatting😉

Answer 2

in css: {font-family: fontname;}

Answer 3

Hyper Text Markup Language just mark the text to make the readable by the browser. It's as the main structure but without beauty. If you want to plus style (beauty), you will need use CSS (Cascade Style Sheet). Check how here:
https://www.w3schools.com/css/css_font.asp

Answer 4

thanxs