If you are just starting to learn Bootstrap, we have created a series of tutorials called 14 Days of Bootstrap 4 that can help you.
In this post, I will present you a list with top free Bootstrap themes, templates and kits, for 2017.
Bootstrap is an open-source Javascript framework developed by the team at Twitter. Bootstrap is the most popular HTML, CSS, and JS framework for developing responsive, mobile first projects on the web. It is a combination of HTML, CSS, and Javascript code designed to help you build user interface components. Bootstrap was also programmed to support both HTML5 and CSS3.