I've run into a couple odd formatting issues where certain parts of the text are displayed much larger than the rest, one with block quotes and one with numbers (see attached screenshots). I exploded the epubs and went looking at the code to see what formatting had been applied to those sections.
Block Quote
<div class="atx">
<div class="tx">
.atx {
border-bottom: 0;
border-top: 0;
display: block;
font-size: 1em;
margin-bottom: 0;
margin-left: 3em;
margin-top: 0;
padding-bottom: 0;
padding-top: 0;
text-align: left;
text-indent: 1.5em
}
.tx {
border-bottom: 0;
border-top: 0;
display: block;
font-size: 1em;
margin-bottom: 0;
margin-top: 0;
padding-bottom: 0;
padding-top: 0;
text-align: justify;
text-indent: 1.5em
}
Numbers
<span class="os-figs">
.os-figs {
font-size: 1em;
font-style: normal;
font-variant: small-caps;
font-weight: normal;
line-height: 1.2
}
I can also send over the original files, if that's helpful.