Image Thumbnails
In addition to our border-radius utilities, you can use .img-thumbnail to give an image a rounded 1px border appearance.
Image Rounded
In addition to our border-radius utilities, you can use .rounded to give an image a rounded 1px border appearance.
Image Circle
In addition to our border-radius utilities, you can use .rounded-circle to give an image a rounded 1px border appearance.
Image Center
In addition to our image position utilities, you can use .mx-auto & .d-block to give an image a rounded 1px border appearance.
Responsive Images
Images in Bootstrap are made responsive with .img-fluid. max-width: 100%; and height: auto; are applied to the image so that it scales with the parent element.
