Bootstrap is a free front-end
framework which is faster, responsive designs, easier for web
based design templates for many components such as forms, buttons,
tables, navigation, modals, image carousels and many other.
What is Responsive Web Design?
design is about creating web sites which automatically adjust
themselves to look good on all devices from small phones to large
Why Use Bootstrap?
Easy to use
Browser compatibility(Chrome, Firefox, Internet Explorer, Edge,
Safari, and Opera)