how to fill div with image code example

Example 1: css image fit in div with aspect ratio

img {
    width: 100%;
    height: 100%; 
    object-fit: contain;
}

Example 2: css fill div with background image

div {
  background-image: url("example.com/image.png");
  background-size: 100% 100%;
}

Example 3: how to contain image size

overflow: 'hidden',
backgroundSize : 'contain',