Thomas Phinney: "The challenging question is, what part of a 12-​​point font is 12 points high? For digital type, the short answer is 'none.'"

Mark Boulton: "If [...] layouts are based on a system that defines its ratios from the content, then there is connectedness on two levels: connectedness to the device, and connectedness to the content."

Yahoo's recommendations for font size normalization across browsers and the method recommended by HTML5 Boilerplate. Explains why to use percentages to size type, rather than pixels or ems, and has a reference for common type sizes.

John Resig: "The problem then becomes: Which way do you round the number? Up, down, or a mixture of the two?"