How to create such a button on every page?

Question

Web development

Good laziness. Tell me how on Wordpress, you can create this button or menu, I don’t know exactly what to call it.
WpOcean and Elementor Theme Should

be displayed on every page.

Answer 1

Here are the important points:
Create a regular divor buttonor a
Add a property to it in CSS position:fixedor position:absolute; right: 0;
By clicking on the button using js, display another div block, which is visible on your screen at the bottom right. For example, you assign this block position:absolute; right:0; bottom:0;
To show or hide the block, use jQuery show() & hide()ortoggle()