In this video we have learn about bootstrap 4 and how to use bootstrap 4 dropdown class bootstrap 4 In asp.net visual studio 2019 its very easy way to learn and its also helpful for new learner student visual studio asp.net.br br br So friends you have like the video so like , share and FOLLOW.br br For More information visit my facebook page,google community etc.br br br br My Website br br br Google+ br br br Facebook br br br Twitter br br br Blogger br br br YouTube br br br Instagram br br br Bootstrap is a free and open-source front-end web framework for designing websites and web applications. It contains HTML- and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions. Unlike many web frameworks, it concerns itself with front-end development onlybr br br br ASP.NET is a web development platform, which provides a programming model, a comprehensive software infrastructure and various services required to build up robust web applications for PC, as well as mobile devices.