I am using gimp designs to style my web pages. For some reason the dimensions are always off between chrome and gimp.For example a div selected in gimp yields \[code\]200x450\[/code\]. If I enter:\[code\].some_div { width: 200px; height: 450px;}\[/code\]The div that shows up in chrome is always smaller.Can I enable some feature in gimp to make the exact?