How make a slideshow in HTML?

Answer 1

without css framework 'w3css':
https://www.w3schools.com/howto/howto_js_slideshow.asp

with framework 'w3css':
https://www.w3schools.com/w3css/w3css_slideshow.asp

( 'w3css' is a bootstrap framework like, providing by https://www.w3schools.com ... A JQuery framework like is also available )

Answer 2

Tell me answer

Answer 3

You need JavaScript