. Things to know when using the popover plugin: Popovers rely on the 3rd party library Popper.js for positioning. EDIT 2: You can stop reading - it is in the CSS somewhere. I’d like to add that for accessibility, I think you should add focus trigger : i.e. Lazy registration for better performance. Ng Bootstrap will help to easily use bootstrap ui. AngularStrap is a set of native directives that enables seamless integration of Bootstrap#^3.0 into your AngularJS#^1.2 application. The main difference between tooltips and popover is that in popover we can contain much more content then tooltips. Nó tương tự như khái niệm Tooltip trong các thư viện khác. A tooltip is used to display quick information about the element and it is easy to add to the element using Bootstrap. It is shown at a specified position by user actions like Click or Hover beside an element. In Angular using bootstrap open Popover. In this article, we will see how to make Dropdown using Angular UI bootstrap. Он похож на принцип Tooltip в других библиотеках. This is considered a “manual” triggering of the popover.