What is an Elastic Layout?
An elastic layout scales with users’ text size.
More accurately, an elastic interface scales with browser text size—commonly a default of 16px—which users can change if they wish. Some people make a permanent change for accessibility reasons, others use the UI controls to increase text size if they need to.
Elastic design uses em values for all elements. Ems are a relative size, written like this: 1em, 0.5em, 1.5em etc. Ems can be specified to three decimal places like so: 1.063em. “Relative” means: