[marp68]

Originally Posted by JSWolf

After converting this with Calibre 5.17, I made some slight changes to the CSS and in ADE 2.0.1 and Calibre's viewer, it works.

body {
  widows: 1;
  orphans: 1;
  margin-top: 0;
  margin-right: 0;
  margin-bottom: 0;
  margin-left: 0;
  text-align: justify;
}
img {
  max-height: 100%;
  max-width: 100%;
}
.calibre {
  display: block;
  margin-bottom: 0;
  margin-top: 0;
  padding-left: 0;
  padding-right: 0;
}
.calibre1 {
  display: block;
}
.calibre2 {
  height: 100%;
  width: 100%;
}

Thank you so much. As I said to Davidfor, which of your edited versions should I go for would you say?

I will maybe try them both as well to see the differencies... :-)