WordPress/wp-admin/tinymce/themes/advanced/editor_ui.css

.mceButtonNormal, .mceButtonOver, .mceButtonDown, .mceSeparator, .mceButtonDisabled, .mceButtonSelected {
	margin-top: 1px;
	margin-left: 1px;
}

.mceButtonNormal {
	border-top: 1px solid;
	border-left: 1px solid;
	border-bottom: 1px solid;
	border-right: 1px solid;
	border-color: #F0F0EE;
	cursor: arrow;
}

.mceButtonOver {
/*	border-top: 1px solid buttonhighlight;
	border-left: 1px solid buttonhighlight;
	border-bottom: 1px solid buttonshadow;
	border-right: 1px solid buttonshadow;*/
	border: 1px solid #0A246A;
	cursor: arrow;
	background-color: #B6BDD2;
}

.mceButtonDown {
/*	border-bottom: 1px solid buttonhighlight;
	border-right: 1px solid buttonhighlight;
	border-top: 1px solid buttonshadow;
	border-left: 1px solid buttonshadow;*/
	cursor: arrow;
	border: 1px solid #0A246A;
	background-color: #8592B5;
}

.mceButtonSelected {
	border: 1px solid;
	border-color: #C0C0BB;
	cursor: arrow;
}

.mceButtonDisabled {
	filter:progid:DXImageTransform.Microsoft.Alpha(opacity=30);
	-moz-opacity:0.3;
	opacity: 0.3;
	border-top: 1px solid;
	border-left: 1px solid;
	border-bottom: 1px solid;
	border-right: 1px solid;
	border-color: #F0F0EE;
	cursor: arrow;
}

.mceSeparator {
	border-top: 1px solid buttonhighlight;
	border-left: 1px solid buttonhighlight;
	border-bottom: 1px solid buttonshadow;
	border-right: 1px solid buttonshadow;
	margin-right: 2px;
	margin-left: 2px;
}

.mceSeparatorLine {
	margin:2px;
	margin-left: 4px;
	background-color: #F0F0EE;
	border-top: 1px solid buttonshadow;
	border-left: 1px solid buttonshadow;
	border-bottom: 1px solid buttonhighlight;
	border-right: 1px solid buttonhighlight;
	width: 0px;
	height: 15px;
}

.mceSelectList {
	font-family: "MS Sans Serif";
	font-size: 7pt;
	font-weight: normal;
	margin-top: 3px;
	padding: 0px;
	display: inline;
	vertical-align: top;
	background-color: #F0F0EE
}

.mceLabel, .mceLabelDisabled {
	font-family: "MS Sans Serif";
	font-size: 9pt;
}

.mceLabel {
	color: #000000;
}

.mceLabelDisabled {
	cursor: text;
	color: #999999;
}

.mceEditor {
	background: #F0F0EE;
	border: 1px solid #cccccc;
}

.mceEditorArea {
	font-family: "MS Sans Serif";
	background: #FFFFFF;
}

.mceToolbarTop, .mceToolbarBottom {
	background: #F0F0EE;
}

.mceToolbarTop {
	border-bottom: 1px solid #cccccc;
}

.mceToolbarBottom {
	border-top: 1px solid #cccccc;
}

.mcePathTop, .mcePathBottom, .mcePath {
	font-family: "MS Sans Serif";
	font-size: 9pt;
	padding: 2px;
	height: 20px;
}

.mcePathTop {
	border-bottom: 1px solid #cccccc;
}

.mcePathBottom {
	border-top: 1px solid #cccccc;
}

.mcePathItem, .mcePathItem:link, .mcePathItem:visited, .mcePathItem:hover {
	text-decoration: none;
	font-family: "MS Sans Serif";
	font-size: 9pt;
	color: #000000;
}

.mcePathItem:hover {
	text-decoration: underline;
}

.mcePath {
	border-bottom: 1px solid #cccccc;
}

.mceDialog {
	position: absolute;
	left: 100px;
	top: 100px;
	z-index: 1000;
}

.mceDialogHeader {
	background: #F0F0EE;
	width: 100%;
	height: 16px;
	margin: 0px;
	padding: 0px;
	border: 1px solid black;
	border-bottom: 0px;
}

.mceDialogTitle {
	float: left;
	font-family: "MS Sans Serif";
	font-size: 9pt;
	height: 14px;
}

.mceDialogClose {
	float: right;
	width: 16px;
	height: 16px;
	background-image: url('images/close.gif');
	background-repeat: no-repeat;
	background-position: 0px 1px;
	margin: 0px;
	padding: 0px;
}

.mceDialogClose a {
	width: 16px;
	height: 14px;
	display: block;
	font-family: "MS Sans Serif";
	font-size: 9pt;
	margin: 0px;
	padding: 0px;
}

.mceDialogIFrameWrapper {
	border: 1px solid black;
	clear: both;
}