Overview summary of 1.4.10 is misleading

[J.F. Hector]

The overview summary of Success Criterion 1.4.10 'Reflow' currently reads:

Where content is zoomed there should be no loss of information or functionality. In particular on smaller devices or resolutions of 320px (vertically) or 256px (horizontally) there should be no scrolling in two directions when resized.

When I read this, it took me a while to understand what '320px (vertically)' and '256px (horizontally)' meant. I interpreted it as:

• 320px in the vertical dimension
• 256px in the horizontal dimension

But that interpretation is incorrect as per WCAG Success Criterion 1.4.10:

• Vertical scrolling content at a width equivalent to 320 CSS pixels;
• Horizontal scrolling content at a height equivalent to 256 CSS pixels.

We should clarify and remove the misleading ambiguity.

[Tobiogunsina]

Correct to: Where content is zoomed there should be no loss of information or functionality. In particular, on smaller devices or resolutions of 320px wide or 256px tall, there should be no scrolling in two directions when resized.

[J.F. Hector]

Thanks a lot @Tobiogunsina for reviewing these PRs :)