Japanese subtitles commonly use shearing of text, as illustrated below.
Not sheared:

Sheared:

Couple of observations:
-
while shearing might not be appropriate for books, it is commonly used for subtitles
-
shearing is not applied to individual characters, but instead to complete blocks -- each of the digits in 1998 is not sheared individually, and both ruby text and base are sheared as a single block
-
the shear angle is author-specified
-
it should be possible to shear individual lines as well as groups of lines
CSS Transforms Module Level 1 skewX() and skewY() can be applied to blocks but neither to lines nor inline elements
See tts:shear, tts:lineShear and tts:fontShear at TTML2.
Japanese subtitles commonly use shearing of text, as illustrated below.
Not sheared:
Sheared:
Couple of observations:
while shearing might not be appropriate for books, it is commonly used for subtitles
shearing is not applied to individual characters, but instead to complete blocks -- each of the digits in 1998 is not sheared individually, and both ruby text and base are sheared as a single block
the shear angle is author-specified
it should be possible to shear individual lines as well as groups of lines
CSS Transforms Module Level 1
skewX()andskewY()can be applied to blocks but neither to lines nor inline elementsSee
tts:shear,tts:lineShearandtts:fontShearat TTML2.