Part four in our series. Scared yet?:
Nausea swept over her. Looking at the body copy rendered her incapacitated. She couldn’t tell if the sentences belonged together in one cohesive paragraph or if text had gone missing. As her eyes leapt and jolted from one line to the next, she couldn’t tell if the previous thought had led her to the present, or if the text had by some malevolence been sliced apart and rearranged. She looked away into the stormy night and glanced back at the page once more, before passing out. As she awoke all she could see were gaping holes between lines of now meaningless words killed by inattentive designs.
Uneven vertical rhythm occurs when your line height shifts, having inconsistent values from one line to the next. It most generally occurs from testing out different leading values and not deciding on just one. It can also happen by patching together text layers in Frankenstein fashion. The best solution to avoid this is for designers to adhere to a strict baseline grid.