Describe the characteristics of stars in the area called main sequence. What do all types of stars located here have in common?

What these stars most have in common is that they are in hydrostatic equilibrium during the main sequence.

Explanation:

These stars are quite diverse and cover a wide spectrum of size and brightness since they are the most numerous group of stars in the entire universe.

A main sequence star:

has not yet consumed all the hydrogen in its core can be yellow, white or blue but not yet a dwarf star