Two solutions:
CSS:
Code:
body {
oeb-column-number: 1;
}
...or using the old and more complicated (but still functional) page-template.xpgt method:
Code:
<ade:template xmlns="http://www.w3.org/1999/xhtml" xmlns:ade="http://ns.adobe.com/2006/ade"
xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:layout-master-set>
<fo:simple-page-master master-name="single_column">
<fo:region-body column-count="1" />
</fo:simple-page-master>
<fo:page-sequence-master>
<fo:repeatable-page-master-alternatives>
<fo:conditional-page-master-reference master-reference="single_column"/>
</fo:repeatable-page-master-alternatives>
</fo:page-sequence-master>
</fo:layout-master-set>
</ade:template>
This file should be declared in the manifest as follows:
Code:
<item id="template" href="page-template.xpgt" media-type="application/vnd.adobe-page-template+xml"/>