XSL-FO uses rectangular boxes (areas) to display output.
The XSL formatting model defines a number of rectangular areas (boxes) to display output.
All output (text, pictures, etc.) will be formatted into these boxes and then displayed or printed to a target media.
We will take a closer look at the following areas:
XSL-FO output is formatted into pages. Printed output will normally go into many separate pages. Browser output will often go into one long page.
XSL-FO Pages contain Regions.
Each XSL-FO Page contains a number of Regions:
XSL-FO Regions contain Block areas.
XSL-FO Block areas define small block elements (the ones that normally starts with a new line) like paragraphs, tables and lists.
XSL-FO Block areas can contain other Block areas, but most often they contain Line areas.
XSL-FO Line areas define text lines inside Block areas.
XSL-FO Line areas contain Inline areas.
XSL-FO Inline areas define text inside Lines (bullets, single character, graphics, and more).