Lining up elements on grid lines
“ In print, grids are fairly static, and it's fairly straightforward to make decisions on how to use them based primarily on aesthetic concerns. As a result, most traditional grid practitioners will line up elements right on the grid lines...In digital media, though, we must, as always, make some compromises for the added factor of the way elements behave. Which is to say that, unlike the printed page, the components of a design - photos, illustrations, shapes, flourishes and type - can transform, change state, move, transform etc.”