Specifies a header column. Header columns are centered within the cell and are bold.
This element is a block element.
align, background, bgColor, borderColor, borderColorDark, borderColorLight, className, colSpan, document, id, isTextEdit, lang, language, noWrap, offsetHeight, offsetLeft, offsetParent, offsetTop, offsetWidth, parentElement, parentTextEdit, rowSpan, sourceIndex, style, tagName, title, vAlign
click, contains, getAttribute, removeAttribute, scrollIntoView, setAttribute
onclick, ondblclick, ondragstart, onhelp, onkeydown, onkeypress, onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, onselectstart