What Is "baseline-shift" Attribute?

This section describes 'baseline-shift' attribute for 'inline' formatting object. It is used to shift the baseline of output inline area relatively from the baseline of the parent line area.

What Is "baseline-shift" Attribute? "baseline-shift" is an attribute for inline-level formatting objects to specify how much to shift the baseline of the output inline area relative to the baseline of the parent line area.

"baseline-shift" attribute can be specified with different types of value:

Here is my tutorial example, inline-baseline-shift-Attribute.fo, that shows two "inline" formatting objects with "baseline-shift" specified:

<?xml version="1.0" encoding="utf-8"?>
<!-- inline-baseline-shift-Attribute.fo
 - Copyright (c) 2016, HerongYang.com, All Rights Reserved.
-->
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
 <fo:layout-master-set>
  <fo:simple-page-master master-name="page" 
   margin="0.1in" page-height="4in" page-width="3in">
   <fo:region-body region-name="body" background-color="#eeeeee"/>
  </fo:simple-page-master>
 </fo:layout-master-set>
 <fo:page-sequence master-reference="page">
  <fo:flow flow-name="body">
   <fo:block margin="0.1in" padding="0.2in" 
    border-width="1px" border-style="solid"
    background-color="#eeffff" color="#000000" 
    text-align="justify" font-family="sans-serif">
    Once upon a time there
    pigs<fo:inline baseline-shift="super" background-color="#ffeeee"
    font-size="70%">[who lived with their Mother]</fo:inline>.
    Early one morning they woke up and their mother said, 
    "you're too big for this 
    house<fo:inline baseline-shift="sub" background-color="#ffeeee" 
    font-size="70%">[and its time you left home]</fo:inline>."
    
   </fo:block>
  </fo:flow>
 </fo:page-sequence>
</fo:root>

If you process this example XSL-FO document with Apache FOP tool, you should see a subscript and a superscript highlighted:

"inline" - "baseline-shift" Attribute

Last update: 2016.

Table of Contents

 About This XSL-FO Tutorial Book

 Introduction of XSL-FO

 Apache™ FOP (Formatting Objects Processor)

 RenderX XEP as an XSL-FO Tool

 Introduction of Area Model

 XSL-FO Document Basics and Examples

 Page Layout Masters

 Block-Level Formatting Objects

Inline-Level Formatting Objects

 What Are Inline-Level Formatting Objects?

 What Is "inline" Formatting Object?

 "inline" Splitting for Line Break

 What Is "line-height" Attribute?

What Is "baseline-shift" Attribute?

 "inline" with Mixed Content

 FOP Failed on "block" inside "inline"

 What Is "inline-container" Formatting Object?

 What Is "charecter" Formatting Object?

 What Is "leader" Formatting Object?

 What Are "page-number*" Formatting Objects?

 Including Graphics in XSL-FO document

 Table of Rows and Columns

 List, Item, Label, and Body

 Floating Blocks - "float" and "footnote"

 Hyperlinks, Table of Contents and Indexes

 Headers and Footers using "static-content"

 Font Attributes and Font Families

 Apache FOP Font Configurations

 RenderX XEP Font Configurations

 References

 PDF Printing Version