<overline>
An overline is a horizontal line that is printed above a line of text, a mathematical symbol, or an illustration in a newspaper or journal.
Rendering expectations
The content of the <overline> element is
typically rendered with a line above it.
Specialization hierarchy
The <overline> element is specialized from
<ph>. It is defined in the highlighting-domain module.
Content model
(Text |
<cite>
|
<include>
|
<keyword>
|
<ph>
|
<strong>
|
<em>
|
<b>
|
<i>
|
<line-through>
|
<overline>
|
<sup>
|
<sub>
|
<tt>
|
<u>
|
<q>
|
<term>
|
<text>
|
<tm>
|
<xref>
|
<data>
|
<sort-as>
|
<draft-comment>
|
<foreign>
|
<required-cleanup>
)*
Attributes
The following attributes are
available on this element: universal
attributes and @keyref.
The following attributes are available on this element: universal attributes and the attributes defined below.
@keyref- Specifies a key name that acts as a redirectable reference based on a key definition within a map. See The keyref attribute for information on using this attribute.
Example
This section is non-normative.
The following code sample shows an <overline
> element used to provide the highlighting used for
mathematical notation:
<p>Overline: <overline><i>x</i></overline> is the
average value of<i>x<sub>i</sub></i></p>