Need CSS help, changing backgrounds of login form

I need CSS to change the background of the login forms however, I do not want the checkboxes to have this background which is why I cannot use

Code:

input {
background-image: url("http://www.calwhite.com/pix/matrix%20001.jpg");
}

Could someone please tell me what to put instead of the input to make the textboxes only have a background.

Code:

.inputbox {
background-image: url("http://www.calwhite.com/pix/matrix%20001.jpg");
border: 1px solid #ffffff;
color: #ffffff;
padding: 4px;
cursor: text;
}

Thats how i did it but had do disable css and put it all in the box