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gallery: grid:3,2,1
Another reason why things just aren't as simple as before, is also because of all kinds of different devices from ultra-large 2560 px screens to small mobile phones. A single "grid" setting simply is not satisfactory options for a grid to "just work" on ALL screens. The grid:3,2,1 setting essentially means "3 columns on large screens, 2 columns on small screens, and only 1 column on small devices". Wish it could be easier, but for modern websites, we need to maintain modern approaches also.