Bootstrap is a matured, frontend framework that helps developers to build responsive (mobile-friendly) websites.
What is Responsive Web Design?
According to W3Schools (World Wide Web Schools: https://www.w3schools.com/bootstrap/bootstrap_get_started.asp), responsive web design is about creating websites that automatically adjust themselves to look good on all devices, from small phones to large desktops.
According to W3Schools (World Wide Web Schools: https://www.w3schools.com/bootstrap/bootstrap_get_started.asp), responsive web design is about creating websites that automatically adjust themselves to look good on all devices, from small phones to large desktops.