HTML » th » height

The height attribute of <th> is deprecated in HTML 4.01.

The height attribute is deprecated effective with version 4.0. You are now to use style sheets. You use this attribute to set a minimum height for the cell. This value is an integer number of pixels. However, you may exceed this minimum height to accommodate the cell contents. The tallest cell in the row determines the actual maximum height which will be adopted by all of the cells in that row.