How to make the menu appear in this way?

Question

css

www.beargrylls.com Here, when you click on the icon on the right, a menu pops up, how can I do the same?

Answer 1

You can take the logic from here
https://wp-lessons.com/vyiezzhayushhee-menyu-s-pom...
and about the copy of this menu, as Ilya wrote:

If you want it to be like this, code inspectors and a little time to analyze it will give you a 100% carbon copy result.

Answer 2

I always like questions in the spirit of "how to do it like this" ... well, there is no universal solution, no one will tell you how to do it so that it's just "like here".
If you want it to be like this, code inspectors and a little time to analyze it will give you a 100% carbon copy result.

Answer 3

to leave on the right, for the container in which the menu, you need to set position: absolute; right: -100%;
by clicking on the icon, set the value right: 0 or your value

Answer 4

https://codepen.io/topicstarter/pen/JLNpxX is this implementation of interest?