adapting-text SC rewrite

Hello everyone,

After yesterday's discussion [1], Andrew's proposed rewrite [2] and
Jon's concerns with the rewrite [3] what do you think about rewriting
the current adapting-text SC, which is:

No loss of content or functionality on a webpage is caused by overriding:

1. font family to Verdana, or
2. foreground and background to white on black, or
3. line height of all text to 1.5, letter spacing to 0.12em, and word
spacing to 0.16em.

To read:

Either a mechanism exists to adapt textual information or no loss of
content or functionality exists when:

* font family is overridden by the user.
* foreground and background colors are overridden by the user.
* line spacing (leading) is at least space-and-a-half within
paragraphs, and paragraph spacing is at least 1.5 times larger than
the line spacing.
* letter spacing (tracking) is at least 0.12 em, and word spacing is
at least 0.16 em.

With this approach the offending hard coded metrics are removed and
the understanding and technique documents will have to provide the

Patrick and David this version incorporates Andrew's suggestion that
authors need to create mechanisms (as a last resort)... and just about
gets us back to where we started.

Thoughts? Ideas for improvement? Is this getting closer to what people
can live with?

Please reply in the GitHub issue:

Thank you.

Kindest Regards,


Laura L. Carlson

Received on Wednesday, 22 March 2017 15:24:26 UTC