- background: -moz-image-rect(url("chrome://global/skin/media/fullscreenButton.png"), 0, 16, 16, 0) no-repeat center;
- margin: 0;
- padding: 0;
- min-height: 28px;
- min-width: 28px;
- border: none;
+ background-image: -moz-image-rect(url("chrome://global/skin/media/fullscreenButton.png"), 0, 16, 16, 0);