Pop it all over

In some cases, you may want to show more information that does not fit in a simple tooltip component. For that, Bootstrap has created popovers, which are components that create small overlays of content to show detailed secondary information.

The popover plugin is an extension of the tooltip plugin, so if you are using separate plugins, you must load both to make it work. Also, just like tooltips, popovers cannot be activated simply through data attributes. You must call them via JavaScript to make them work.

Let's use a popover in our web app example, on the right-hand-side column, the one identified by div#who-follow. We will add the popover to the Follow buttons, and for that, we need to do two things. The first one is to change the <button> element to an <a> element and then add the popover markup.

Tip

Why do we need to change buttons to links in popover?

Actually, we don't have to change the buttons' markup; we will do that just because of cross-browser compatibility...