When I look at my epub book in Sony reader it looks rather different than in Sigil bookview.
Some of the things that arenīt respected:
.center {text-align: center;}
is NOT centered.
Italics I have formulated thus:
.ital {font-style: italic;}
<span class="ital">
It does not translate at all.
Larger letter spacing
.l-space { letter-spacing: 0.2em;}
<span class="l-space">
does not work.
Most importantly I have right after each chapter heading a small Intro, one or two right-aligned sentences.
.intro {
margin-left: 50%;
font-size: 0.9em;
text-align: justify;
letter-spacing: 0.09em;
}
<div class="intro">
This comes out just like regular text.
(Actually that code looks a bit strange... but I am new to CSS.)