Tooltip is a small "hover box" containing information about the item being hovered over. Tooltip appears on hover over an element with the cursor, or focus on an element using a keyboard (usually through the tab key), or upon touch (without releasing) in a touch UI.

Bootstrap Tooltip

It is an updated version, which don't rely on images, use CSS3 for animations, and data-attributes for local title storage. Tooltip with zero-length titles is never displayed.

Propeller Tooltip

Propeller tooltip uses basic Bootstrap Tooltip customized with Material Standards. To initialize the Propeller Tooltip, add the HTML attribute data-toggle="tooltip". To define the tooltip position, use data-placement attribute. data-placement attribute can take left, right, top and bottom as values.

Hover over the link below to see tooltip

Propeller is the combination of Material Design and Bootstrap that makes your website more attractive, consistent, and functionally powerful. The Propeller components are created with CSS, JavaScript, and HTML. You can use the components to construct web pages and web apps that are attractive, consistent, and functional. By using Propeller components, you can get basic structure of your design and also customise it easily.