#wp-admin-bar-di-logo >.ab-item .di-icon {
	width:20px;
	height:20px;
	margin-top:4px;
	position: relative;
	float: left;
	background-image:url(../images/admin-bar-sprite.png?d=20130501);
	background-position:0 0;
	background-repeat:no-repeat;
}

#wpadminbar.nojs #wp-admin-bar-di-logo:hover >.ab-item .di-icon, #wpadminbar #wp-admin-bar-di-logo.hover > .ab-item .di-icon {
	background-position:0 -20px;
}