What are responsive utility classes in Bootstrap?

[vidushi-tomar-7f335103 (Vidushi Tomar)]

What are responsive utility classes in Bootstrap?

[anik-acharjee]

These types of classes are used basically to show and hide the content in large, small and medium devices. Different classes like -

1. .visible-xs
2. .hidden-xs
3. .visible-sm
4. .hidden-sm
5. .visible-lg
6. .hidden-lg and many more