Should mobile modal popups be movable?

1. Should modals be moveable?
2. Is it acceptable to open a modal popup on top of another modal popup?
3. Should modals have a close button?
4. What is the difference between popover and pop-up?

Should modals be moveable?

Modal dialogs should be movable unless you have a good reason for them to be fixed in place.

Is it acceptable to open a modal popup on top of another modal popup?

Using a modal on top of another modal is a big red flag that something broke down in your workflow. If your workflow requires a second modal, you probably have some bigger issues with complexity within your modal. Remember: some of the best use cases for modals are focused, simple content.

Should modals have a close button?

Closing the modal: Always provide a clear close option for users by using a button or an 'x' icon at the top right of the modal.

What is the difference between popover and pop-up?

Because popups are often used to serve alerts and ads, most modern browsers include a popup block setting, and some have it activated by default. The average user can't see popup windows. A popover (also known as an overlay, a modal, or interstitial) is part of the actual web page.