How can i run a code of html whit notepad++?

Answer 1

There is a plugin you can get I duno if it's any good as I my self just test in firefox but you can have a look I guess https://www.ampercent.com/how-to-preview-html-in-notepad/16844/

Answer 2

(save as filename.html)

Answer 3

notepad isn't any compiler or browser,you can write code on notepad,save it and run in any browser like chrome or firefox