Bootstrap 4 Dropdown Example. Compatible browsers: Chrome, Edge, Firefox, Opera, Safari, Dependencies: font-awesome.css, jquery.js. Hamburger Menu with brown background. The .dropdown class indicates a dropdown menu. It is a great starting point for minimal dashboard web apps, or general websites with a toggleable sidebar. Scrollable Dropdown Menu This is a bootstrap dropdown menu example which contains two sets of example. The following example shows how to add a navigation bar to the top of the page: If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: