Clara HD Default font size, line spacing and margins

[ZodWallop]

Originally Posted by DNSB

Wait until you run into an epub that uses inline styles instead of stylesheets. For me, that's where the RemoveInlineStyles plugin for Sigil can become a great timesaver. One recent epub I edited had 47 stylesheets, all 47 contained one item that set the size of the page in pixels with all other styles being done inline. Barf!

Sure. And that may be the issue here. The OP hasn't specified the book or where they got it. I was just trying to give a simple answer to:

Is it common/typical that a public domain epub downloaded from the internet may require conversion/CSS overriding to display/format correctly on the device?

That and looking at what was mentioned in earlier posts... could be anything. But issues in the stylesheet are a good bet as stylesheets are more common than inline CSS.

The OP seemed concerned about why everyone was telling him/her to convert the book and will this be an ongoing isse?

In the end, it is most likely an issue with that book or how books from that source are formatted rather than any inherent issue with how Kobo handles sideloaded ePubs.