How to make the links in the menu of the site on Wordpress work?

Question

WordPress

I'm creating a theme on Wordpress and ran into a problem due to inexperience. In HTML, the li > a tags indicate the path to the html file, but this does not work with wp. How to make wordpress navigate to other pages?

And another css question. Style.css contains the path to the image, how do I tell wp to see it?

Answer 1

the picture is so

<img src="<?php echo esc_url( get_template_directory_uri() ); ?>/img/screenshot.png">

for the menu, use the built-in thing called the menu https://www.youtube.com/watch?v=Hls63xQLFY0
I advise you to look at something like this course. many questions will disappear immediately
https://www.youtube.com/watch?v=tvGfno8VLnw&list=P...

Answer 2

Register the menu via the wp function - register_nav_menu(). You can look at wp-kama.ru for more details.
Picture - if the picture is in the theme folder, then leave it the same way, if in the upload folder, then change the path to it.