to achieve effective alignment and consistency with little effort. “Winging it” and relying on your gut does not scale so well. If executed properly, your designs will appear thoughtful, organized, neat and structurally sound.” A Comprehensive Introduction to Grids in Web Design
font-size: 1.8rem /* 18px */; } ul ul { font-size: 1.4rem; /* 14px */ } html { font-size: 62.5%; } ul { font-size: 1.8em /* 18px */; } ul ul { font-size: 1.4em; /* 1.4*18px=25.2px */ }