Create Popovers Around Elements – Popover.js
A tiny yet fully configurable popover JavaScript library for creating tooltip- and popover-style popups around any DOM element you specify.
JavaScript & CSS popover
CSS Only Accessible Tooltip & Popover – pop-pop.css
pop-pop.css is a simple, accessible, flexible, customizable CSS tooltip & popover library for the modern web & mobile design.
Google Inspired Popover Menu In Pure CSS
A modern CSS only popover navigation menu as you seen on Google.com.
Customizable Popover On Text Selections – Selection-js
Yet another JavaScript plugin to create a popover that displays on the top of your text selection.