.menu_videos
{
	background-image: url("../images/menu_base_02.jpg");
	width: 922px;
	height: 63px;
}

.menu_concepto
{
	background-image: url("../images/menu_base_01.jpg");
	width: 922px;
	height: 63px;
}

.btn_videos , .btn_videos_active
{
	background-image: url("../images/btn_02_40px.png");
	width: 194px;
	height: 40px;
	margin-left:6px;
	margin-top: 10px;
	float: left;
}

.btn_concepto , .btn_concepto_active
{
	background-image: url("../images/btn_01_40px.png");
	width: 194px;
	height: 40px;
	margin-left:263px;
	margin-top: 10px;
	float: left;
}

.btn_concepto_active:hover
{
	background-image: url("../images/btn_01_40px.png");
	background-position:bottom; 
	width: 194px;
	height: 40px;
	margin-left:263px;
	margin-top: 10px;
	float: left;
}

.btn_videos_active:hover
{
	background-image: url("../images/btn_02_40px.png");
	background-position:bottom; 
	width: 194px;
	height: 40px;
	margin-left:6px;
	margin-top: 10px;
	float: left;
}