Why table width is ignored?

Question

I coded style in the following:

table.gridtable {
    font-family: verdana,arial,sans-serif;
    font-size:14px;
    color:#333333;
    border-width: 1px;
    border-color: #666666;
    border-collapse: collapse;
        width: 400px;
}

and I see no overridings in Firebug. Nevertheless table width is computed as 812 px;

Why?

Actual page is here (in Russian): http://garmonia-znakomstva.ru/service.html

UPDATE

Can I add invisible word breaks, which would cause word breaking and hyphen if insufficient space and continuous word if enough space?

Answer 1

Applying this explicitly gave me the right result, width is respected, long text using new lines and height (instead width) expanding accordingly.

td { white-space:normal}