Trick to imitate `background-size: cover;` on img tags. Parent can be any element type.

file.scss

.parent {
  overflow: hidden;
  position: relative;
  
  .child {
    bottom: -9999px;
    left: -9999px;
    margin: auto;
    min-height: 100%;
    min-width: 100%;
    position: absolute;
    right: -9999px;
    top: -9999px;
  }
}