Text-Vertical alignment in Row

I was able to center align the text in a row (so that when I merged cells, the text was centered vertically in the cell). When I preview the table, the text is where I want it.

However, when I view the table on the site, the text is at the top of each cell and not vertically centered.

This is the code I used:

.tablepress td {
	vertical-align: middle;
}

Here is the table on my site: http://winddancercorgis.com/pembrokes/pem-boys/quinn/quinnpedigree/

I appreciate any help you can give me. Thanks!

http://wordpress.org/extend/plugins/tablepress/