colgroupelement that doesn't have a
HTMLTableColElement, same as for
colgroup elements. This interface defines one member,
col element has a parent and that is a
colgroup element that itself has a parent that is a
table element, then the
represents one or more columns in the column group represented by that
The element may have a
span content attribute
specified, whose value must be a valid non-negative
integer greater than zero.
col element and its
span attribute take part in the
attribute must reflect the content attribute of the
same name. The value must be limited to only non-negative
numbers greater than zero.