Fluid width with equally spaced DIVs

Answer 1

This worked for me with 5 images in diferent sizes.

1. Create a container div
2. An Unordered list for the images
3. On css the unordened must be displayed vertically and without bullets
4. Justify content of container div

This works because of justify-content:space-between, and it's on a list, displayed horizontally.

On CSS

 #container {
            display: flex;
            justify-content: space-between;
 }
    #container ul li{ display:inline; list-style-type:none;
}

On html