[dtc87]

Many thanks for the suggestions - the calibre6 part of the css stylesheet doesn't seem to have those settings. Here's the whole stylesheet;

.calibre {
    display: block;
    font-size: 1em;
    padding-left: 0;
    padding-right: 0;
    margin: 0 5pt
    }
.calibre1 {
    display: block;
    margin: 1em 0
    }
.calibre2 {
    height: auto;
    width: auto
    }
.calibre3 {
    font-weight: bold
    }
.calibre4 {
    display: block
    }
.calibre5 {
    display: block;
    font-size: 1.66667em;
    font-weight: bold;
    line-height: 1.2;
    margin: 0.83em 0
    }
.calibre6 {
    font-style: italic
    }
.sigilNotInTOC {
    display: block;
    font-size: 1.29167em;
    font-weight: bold;
    line-height: 1.2;
    margin: 1em 0
    }

And here's an example of a paragraph from the text which uses the calibre6 style, resulting in mangled formatting on Moon+ Reader;

<p class="calibre1">The brother gives the products of his work (yams) for the use of his sister's husband, while the sister provides her brother's wife with the skirts and fibers of female wealth. From the point of view of the siblings'  <i class="calibre6">dala</i>, wealth returns to them by a double route: female wealth via the sister's marriage to her husband and male wealth via the brother's yam exchange with the sister's husband. The work of each sibling is thus objectified in these items. An asymmetry between female and male wealth has already been noted, the latter as Weiner stresses not carrying the regenerative overtones of the former. But the two kinds of wealth</p>

Any thoughts on what to try?