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(optional long index); void deleteRow(long index); };