Ex (typography) redirects here. For other uses of the term “ex”, see
Ex (disambiguation). In
typography, the x-height or corpus size refers to the distance between the
baseline and the
mean line in a
typeface. Typically, this is the height of the letter x in the font (which is where the terminology came from), as well as the a, c, e, m, n, o, r, s, u, v, w, and z. However, in modern typography, the x-height is simply a design characteristic of the font, and while an x is usually exactly one x-height in height, this is not always the case.
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