Rounded Corners
This is the div element box 1 that will have the rounded corners. You can also use rounded corners on images. It will cause the corners of the image to be hidden. In this box, the border radius is consistently 10px.
This is the div element box 2 that will have the rounded corners. You can also use rounded corners on images. It will cause the corners of the image to be hidden. In this box, the border radius goes from 10px to 20px to 30px to 40px.