Modal
Overview
Modals are temporary, modal UI overlay that generally provide contextual app information or require user confirmation/input, or can be used to advertise new app features. In some cases, Modals block interactions with the web page or application until being explicitly dismissed. They can be used for lightweight creation or edit tasks and simple management tasks, or for hosting heavier temporary content.
For usage requiring a quick choice from the user, Dialog may be a more appropriate control.