By default Image will have a height and widht of 9.375 rem wuth some margins around it

You can also convert your image to a round image by simply adding img-round class on your img tag.

There are three sizes i.e. small, medium and large in which you can show your images as your need. Medium size is default.

Responsiveness is awesome! We all know it. To make your life easy you can create a responsive image which will adjust its size according to its parent container by simply adding img-res class in your tag. Try resizing your window to see the effect.