.Mobile {
	background-image: url(../images/knop_mobile.png); 
	background-repeat: no-repeat; 
	background-position: left top;
}
.Int {
	background-image: url(../images/knop_int.png); 
	background-repeat: no-repeat; 
	background-position: left top;
}
.Comp {
	background-image: url(../images/knop_comp.png); 
	background-repeat: no-repeat; 
	background-position: left top;
}