Use .img-fluid to make an image fit with its container.
.img-fluid
Use .rounded, .rounded-circle, or .img-thumbnail on <img> to quickly style the borders. .rounded-0 will remove the border-radius styles.
Use .rounded, .rounded-circle, or .img-thumbnail on <img> to quickly style the borders.
.rounded
.rounded-circle
.img-thumbnail
<img>
.rounded-0 will remove the border-radius styles.
.rounded-0
border-radius
