The CSS page-break-(before|after) attributes will be honored when converting an ePub using Kindle(gen|Previewer).
HTML
Code:
<div class="page_break"></div>
CSS
Code:
.page_break {
page-break-before: always;
}
Most epub readers
should honor it (no guarantees), but some readers may not honor the margin-top property assigned to such a page-break element. The technique is often used to give footnotes their own "page" even though all the footnotes are part of one html file.