CSS How to stretch a watermark/background in CSS?

I have the following on my css style sheet:

.welcomebackground{
background-image: url("hive2.jpg");
background-repeat: no-repeat;
background-position: center;
background-color: #ffffff
}

img.transparent{
filter:alpha(opacity=75);
opacity:.75;
}

This is inside a table. I am trying to expand this to the entire table, but when I add width and height, nothing happens. I've tried other configurations that I have seen online, but it ends up moving the image all over the table, but not stretch it. What am I missing from the configuration above that will enable me to stretch the image to cover the whole table? Thanks in advance.

 

Take a look at this article: http://webdesign.about.com/od/css3/f/blfaqbgsize.htm

You might be able to apply the technique to your table.

It seems you cannot use the background properties to stretch the image.

What you do is use a regular img tag in your HTML to which you can apply width and height.

And then you use relative positioning and a z-index to put your table on top of it.

 

I think you can stretch the image. Can you post the entire codes or give us the link to the image in question?