ANSI/NISO Z39.96-2015

9 Journal Publishing Tag Set, version 1.1 • 9.5 Attributes

9.5.104 @span Span (NISO JATS table model)

The number of columns that will share the <col> or <colgroup> element’s attributes. (This attribute is based on and intended to be converted easily to the XHMTL span attribute.)

In elements <col> and <colgroup>, this attribute will be assigned the value 1 by default.
Value Meaning
A counting number How many columns will have the same attributes, for example, 3.