Div tag floats when it should stay in the same place

Hey,

I have placed a div tag in the header of my site called #donate

Within this div tag I have placed the code for visitors to donate to paypal. Here is the code for the div tag…

#donate {
position: absolute;
width:78px;
height:54px;
top:47px;
left:692px;
}

I thought that the dic tag would not move due to absolute postioning. However, when viewed at different browser sizes it floats. You can also drag the browser size back and forth to see it move across the page. How do I get it to stay in the same place?

Thanks!