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.
Code:
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%;
}