So it makes pictures larger / smaller based on the screen width?
Usually what is expected is that with narrower screen, you get fewer columns, pictures are still same-ish size. You also need to keep the order of the items (e.g. on a wider screen 1, 2, 3, 4 are all on one row, with a smaller screen 1 and 2 are on a row, then 3 and 4 on another row).
Sure, but different from what the masonry design is meant to facilitate (check the linked demos). It's very useful esp. for a photo gallery kind of sites.
