Kaz,
The epubs I've bought (from Borders Australia) usually have something like this at the top of the .css file (in the Styles folder in Sigil):
Code:
@page { margin-bottom: 1em;margin-left: 1em;margin-right 1em;margin-top: 1em;}
body { margin-bottom: 1em;margin-left: 1em;margin-right 1em;margin-top: 1em;}
If you have something like that, you can try changing all those "1em" to "0" and see if that gets rid of your borders.
Calibre conversions seem to stick the @page section in the top of each .html file. I've found Sigil's find&replace is the easiest way to clean these up.
For the justification, my purchased epubs usually have "text-align: justify;" in the relevant paragraph definition in the .css. so this is done alreay. For example, the main text might have paragraphs that start with:
Code:
<p class="tx">It was a dark and stormy night...
and in the css is:
Code:
p.tx {
...
text-align: justify;
...
}
For these there's no hard-and-fast fix without looking at the css first.
In general, I get Kindle books and convert with Calibre as that's usually the cheaper option.
Cheers,
Simon.