Blocks of different widths and the same width?

Question

css

How to make a photo look like here? https://www.flickr.com/explore

Answer 1

Check out the source code. It can be seen that the width of the blocks is set through the style attribute in the tag. So almost 100% this is done using JS. Do a little googling and you can find js/jquery plugins for this purpose.
For example: miromannino.github.io/Justified-Gallery