#classroom_enclose_bild {
	display: none;
}

#classroom_enclose_text, #classroom_text {
	width: 100%;
}
* html #classroom_enclose_text {
	margin-right: 200px;
}

#classroom_unten {
	color: #000;
	background-color: #FFF;
}
* html #classroom_unten {
	margin-right: 200px;
}