How to make cool mobile menus

Hello guys!

I am making a new website and for mobile I would love to have a navigation menu similar to this! Does anyone know how I can do that? I only know html and css for now, but if it has to include javascript or something I am up to learn!

For the menu button to work, you’ll need to know some JavaScript.
The menu design could be done through CSS’s absolute positioning attribute.
MDN: CSS Position