What do bootstrap classes sm,md,lg,xl mean?

[hp-singh-53e2639c (Harjas Preet Singh)]

What do bootstrap classes sm,md,lg,xl mean?

[anik-acharjee]

We can use different types of Bootstrap classes in our website. Different classes signifies different device sizes -

1. “sm” - It is used for small-sized devices.
2. “md” - It is used for medium-sized devices.
3. “lg” - It is used for large-sized devices.
4. “xl” - It is used for extra-large devices.