#wrapper {
	width: 100% ;
	min-width: 1200px;
	height: auto;
	min-height: calc(100% - 117px);
	position:relaitve;
	top: 0;
	left: 0;
	overflow-x: hidden;
	overflow-y: hidden;
}
#mask {
	width: 600%;	/* 100% pro Tab */
	min-width: 7200px;	/* 1200 mal Anzahl Tabs */
	height: 100%;
}
.item {
	width: 16.6667%;		/* Anpassen, 100 / Anzahl Tabs */
	min-width: 1200px;
	height:100%;
	float:left;
}
.content {
	width:100%;
	height:300px;
	margin:0 auto;
	background-color:#aaa;
	position:relative;
}
.clear {
	clear:both;
}