[DNSB]

For what little it may be worth, I use the following for my base body and p CSS:

body {
  display: block;
  font-size: 1em;
  margin: 0 0 0 0;
  padding: 0 0 0 0;
  text-indent: 0;
  line-height: 1.05;
  widows: 1;
  orphans: 1;
}

p {
  display: block;
  text-indent: 0;
  line-height: 1.05;
  margin: 0 0 0 0;
  padding: 0.1em 0 0 0;
  margin-block-end: 0em;
}

The "padding: 0.1em 0 0 0;" is to add a minimal spacing between paragraphs which I personally happen to prefer.