div crop by border radius in css code example

Example 1: css crop image to circle

background-image: url("url");
width:100px;
height:100px;
background-size:contain;
background-position:center;
border-radius:50%;

Example 2: crop image with circle css

.image-cropper {
  width: 100px;
  height: 100px;
  position: relative;
  overflow: hidden;
  border-radius: 50%;
}

img {
  display: inline;
  margin: 0 auto;
  height: 100%;
  width: auto;
}