HTMLTableCellElement - Web APIs
htmltablecellelement.valign a domstring representing an enumerated value indicating how the content of the cell must be vertically aligned.
... it reflects the valign attribute and can have one of the following values: "top", "middle", "bottom", or "baseline".
... recommendation the following properties have been obsoleted: align, axis, bgcolor, height, width, ch, choff, nowrap, and valign.

HTMLTableRowElement - Web APIs
htmltablerowelement.valign is a domstring representing an enumerated value indicating how the content of the cell must be vertically aligned.
... it reflects the valign attribute and can have one of the following values: "top", "middle", "bottom", or "baseline".

HTMLTableSectionElement - Web APIs
htmltablesectionelement.valign is a domstring representing an enumerated value indicating how the content of the cell must be vertically aligned.
... it reflects the valign attribute and can have one of the following values: "top", "middle", "bottom", or "baseline".

<tr>: The Table Row element - HTML: Hypertext Markup Language
valignobsolete since html5 a domstring specifying the vertical alignment of the text within each cell in the row.
... don't use the obsolete valign attribute.

HTML: A good basis for accessibility - Learn web development
<button width="100">go!</button> </td> </tr> <!-- spacer row --> <tr id="spacer" height="10"> <td> </td> </tr> <!-- main content and aside row --> <tr id="main"> <td id="content" colspan="4" bgcolor="#ffffff"> <!-- main content goes here --> </td> <td id="aside" colspan="2" bgcolor="#ff80ff" valign="top"> <h2>related</h2> <!-- aside content goes here --> </td> </tr> <!-- spacer row --> <tr id="spacer" height="10"> <td> </td> </tr> <!-- footer row --> <tr id="footer" bgcolor="#ffffff"> <td colspan="6"> <p>©copyright 2050 by nobody.

HTML: A good basis for accessibility - Learn web development
<button width="100">go!</button> </td> </tr> <!-- spacer row --> <tr id="spacer" height="10"> <td> </td> </tr> <!-- main content and aside row --> <tr id="main"> <td id="content" colspan="4" bgcolor="#ffffff"> <!-- main content goes here --> </td> <td id="aside" colspan="2" bgcolor="#ff80ff" valign="top"> <h2>related</h2> <!-- aside content goes here --> </td> </tr> <!-- spacer row --> <tr id="spacer" height="10"> <td> </td> </tr> <!-- footer row --> <tr id="footer" bgcolor="#ffffff"> <td colspan="6"> <p>©copyright 2050 by nobody.

Mozilla MathML Status
altimg, altimg-width, altimg-height, altimg-valign, alttext accepted, but do not have any effect on the rendering.

HTMLTableColElement - Web APIs
htmltablecolelement.valign is a domstring that indicates the vertical alignment of the cell data in the column.

<col> - HTML: Hypertext Markup Language
valign this attribute specifies the vertical alignment of the text within each cell of the column.

<colgroup> - HTML: Hypertext Markup Language
valign this attribute specifies the vertical alignment of the text within each cell of the column.

<tbody>: The Table Body element - HTML: Hypertext Markup Language
valign this attribute specifies the vertical alignment of the text within each row of cells of the table header.

<td>: The Table Data Cell element - HTML: Hypertext Markup Language
valign this attribute specifies how a text is vertically aligned inside a cell.

<tfoot>: The Table Foot element - HTML: Hypertext Markup Language
valign deprecated since html4obsolete since html5 this attribute specifies the vertical alignment of the text within each row of cells of the table header.

<th> - HTML: Hypertext Markup Language
valign obsolete since html5 this attribute specifies how a text is vertically aligned inside a cell.

<thead>: The Table Head element - HTML: Hypertext Markup Language
valign in html 4, in html5 this attribute specifies the vertical alignment of the text within each row of cells of the table header.