improve display on mobile phones + small fix

[domel]

Improvement display on mobile phones and other small devices + whitespaces in styles + code

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Preview | Diff

[TallTed]

The most challenging table here appears to be §6.2 RDF properties, which overall looks OK. It would be improved by 2 or 3 pixels of cell padding, so that values collide neither with cell walls nor with each other. This will make the table a bit wider than it is now, but I think the readability improvement is worth it. (The table in §6.1 RDF classes will also benefit from this padding, as will, I think, any other tables to which it is applied.)

[domel]

@TallTed done

[TallTed]

MUCH improved!