#alert { list-style-image: url("chrome://mozapps/skin/update/update.png"); } .throbber { list-style-image: url("chrome://global/skin/icons/loading.gif"); width: 16px; height: 16px; margin-top: 5px; margin-bottom: 5px; -moz-margin-start: 5px; -moz-margin-end: 2px; } .alertBox { background-color : #000000; color: #FF9F00; border: 0px solid transparent; border-bottom: 1px solid #008484; -moz-margin-start: 3px; -moz-margin-end: 3px; padding: 5px; }