It’s a function of microtypography (how text is styled within a text block) and macrotypography (how content elements are arranged on the page).
Typesetting controls the readability of a text with the size, style, and spacing of its type. Our default typefaces are designed for legibility and can adapt to a variety of visual tones. Government websites need clear and consistent headings, highly legible body paragraphs, clear labels, and easy-to-use input fields.
Sample contract language for 21st Century IDEA