How to copy WordPress codes.....?

Answer 1

Open WordPress site in browser.

Smartphone:
Chrome, Firefox :
view-source:https://www.example.com
Default android browser: 😂
You can download webpages.
Then you can open .html in text editor.
Computer:
Internet explorer😂, Chrome , Mozilla firefox, opera :
There is option for view source code. ( sometimes enabling dev mode is necessary )