Not a row in sight

Look! Almost a row!

Definitely not a row

But, while I just said that the previous grid-lanes which had 3 columns, created "rows" of items, I want to make sure you take this away: there are no rows to speak of in a column orientation grid-lanes layout. Here is an illustration of this. On the left, items have mostly the same height, and therefore they are placed in a way that looks like rows. On the right, items have very different heights, and you can see how rows are nowhere to be seen. Not only are things not aligned, but they're out of order too.