gecko-dev/profile/resources/common.css

window {
	display: block;
	width: 100%;
	background-color: white;
}

tree {
	display: table;
	background-color: #000000;
	border: none;
	border-spacing: 0px;
	//border-collapse: collapse;
	width: 100%;
}

treeitem {
	display: table-row;
}

treehead {
	display: table-header-group;
}

treebody {
	display: table-row-group;
	
}

treecell {
	display: table-cell;
	color: white;
	font-family: Verdana;
	font-size: 10pt;
}

treehead treeitem treecell {
	background-color: #a0a0a0;
	border: thin black solid;
	color: black;
}

icon {
	display: list-item;
	height: 16px;
	width: 16px;
	list-style-image: url("resource:/res/mailnews/messenger/closedMailFolder.gif");
}

treecell[selected] {
	background-color: #000080;
}