Create submenus in the application

I am building a mobile version of my website. The desktop version uses Bootstrap Modal frames to edit data records .

On a mobile page, this can be achieved with a separate page that appears as an iOS submenu (imagine the settings app when you select a category, scroll down the page and a new menu appears).

How can I do that? Is there a framework to support this? Is there actually a name for this effect / template?

Thank!