Kindle "asize" tag

[beiti]

The Kindle guidlines for embedded fonts
https://kdp.amazon.com/en_US/help/to...embedded_fonts
suggest using the word "asize" for font size in CSS:

body { font-family: PrimaryFont; font-size: asize; }

This is new to me and I couldn't find it in any CSS or HTML tutorial.
Does anyone here know what "asize" stands for?

[jhowell]

I believe it is just meant as a stand in for a specific font size, such as 16pt. Just like PrimaryFont and SecondaryFont are not real font names.

[beiti]

Originally Posted by jhowell

I believe it is just meant as a stand in for a specific font size, such as 16pt.

Maybe. But the same article also says we should not use any (!) font size attribute for body text:

Body text must use the default font size (1em) and line height. Body text should not use the <font size="…"> tag or the font-size and line-height attributes in CSS.

That's why I thought, maybe 'asize' is some rarely known CSS value that sets back a value to standard, or whatever.

[jhowell]

Amazon's Kindle formatting documentation is terrible. It is inconsistent, inaccurate, and incomplete.

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For example I noticed today that Amazon just added a new section, "Common errors leading to Kindle conversion internal error", to the Attributes and Tags Supported by Enhanced Typesetting guideline page. The instructions and examples provided are terrible.