body.margin.inner length body.margin.inner Specify the size of the inner margin of the body region 0in The inner body margin is the extra inner side (binding side) margin taken from the body region in addition to the inner page margin. It makes room for a side region for text content whose width is specified by the region.inner.extent parameter. For double-sided output, this side region is fo:region-start on a odd-numbered page, and fo:region-end on an even-numbered page. For single-sided output, this side region is fo:region-start for all pages. This correspondence applies to all languages, both left-to-right and right-to-left writing modes. The default value is zero. See also region.inner.extent, region.outer.extent, body.margin.outer, side.region.precedence.