<thead>
A table header contains one or more header rows in a table that is based on the OASIS Exchange Table Model.
Usage information
Content model
Contained by
One or more <row>
Contained by
Inheritance
- topic/thead
The <thead> element is a base element type. It is defined in the topic module.
Attributes
The following attributes are available on this element: universal
                                                  attributes and @valign.
The following attributes are available on this element: universal attributes and the attributes defined below.
@valign(complex table attributes)- Specifies the vertical alignment of text in table entries. The following values are valid: 
- bottom
 - Indicates that text is aligned with the bottom of the table entry.
 - middle
 - Indicates that text is aligned with the middle of the table entry.
 - top
 - Indicates that text is aligned with the top of the table entry.
 - -dita-use-conref-target
 - See Using the -dita-use-conref-target value for more information.
 
The
@valignattribute is available on the following table elements:<entry>,<tbody>,<thead>, and<row>.