fill image in div

1.fill {
2    display: flex;
3    justify-content: center;
4    align-items: center;
5    overflow: hidden
6}
7.fill img {
8    flex-shrink: 0;
9    min-width: 100%;
10    min-height: 100%
11}

1body {
2  margin: 0;
3}
4img {
5  display: block;
6  width: 100vw;
7  height: 100vh;
8  object-fit: cover;
9}

1
2img {
3  width: 200px;
4  height: 
5  300px;
6  object-fit: cover;
7} 

1overflow: 'hidden',
2backgroundSize : 'contain',
3