In version 1.0 of the XSL recommendation, page masters have up to five regions. The central region, which corresponds to the body of the page, is called the body region. The top part of the page, the header, is called the before region; the bottom part of the page, the footer, is called the after region. In languages that read left to right, such as English, the left side of the page is called the start region and the right side is called the end region. In languages that read right to left, the start and end regions are reversed. You can think of start and end regions as sidebars that flank the body region.
XSL formatting objects correspond to these regions: