[RbnJrg]

Originally Posted by JSWolf

p {
  color: blue;
  margin-top: 0;
  margin-bottom: 0;
  widows: 1;
  orphans: 1;
  text-indent: 1.2em;
}

That works in calibre's viewer and preview to show blue text.

No, you are wrong. That's not work on Calibre Viewer; this is a screenshot of my Calibre under Archlinux:



Color is conspicuous by its absence.

Here there is the epub so anyone can do the test. But by adding "-webkit-text-fill-color: red" and "-webkit-text-fill-color: blue" colors work.