From WebmasterWorld HTML Forum:
This example is not sized to the viewport height, it is just a static table in the page. The table cells, however, expand to their contents despite the row/cells having a fixed height (apart from Row 3) and having set
overflow:hidden. If cell heights are to be fixed, then it maybe best to use a containing DIV in the table cell and fix the height of that - as have done before [link]. [See the example using 100% viewport] which is closer to the intended goal in the forum.
[Load Cell Contents]
|Row 3 - [Flexible height]|