css how to make an image fill a div code example

Example 1: css image fit in div with aspect ratio

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

Example 2: image to fill div

.fill {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden
}
.fill img {
    flex-shrink: 0;
    min-width: 100%;
    min-height: 100%
}

Example 3: how to contain image size

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

Example 4: make image stretch to fit div

Just apply without any changing any code
img {
width: 100%;
}