ns that the font's extent is exactly the same as its line-height,
meaning that it can be exactly aligned with padding, borders, margins,
and so forth.

The font's alphabetic baseline is 0.2em above its bottom, and 0.8em
below its top. The font has an x-height of 0.8em.

The font has four glyphs:

  'X' U+0058 A square exactly 1em in height and width.

  'p' U+0070 A rectangle exactly 0.2em high, 1em wide, and aligned so
             that its top is flush with the baseline.

  'É' U+00C9 A rectangle exactly