The thead element represents the block of rows that consist of the column labels (headings) for its parent table element.
A thead element must have a start tag.
A
thead
element’s
end tag
may be omitted if the
thead
element is immediately followed by a
tbody
or
tfoot
element.
interface HTMLTableSectionElement : HTMLElement {
readonly attribute HTMLCollection rows;
HTMLElement insertRow(in optional long index);
void deleteRow(in long index);
};