ul.sectoren li a { width: 213px; }
.block.white, .block.blue {
	border: solid 1px transparent;
}


.column1 { width: 213px; margin: 0 18px 0 0; float: left; }
.column2 { width: 462px; margin: 0 18px 0 0; float: left; }
.column3 { width: 711px; margin: 0 18px 0 0; float: left; }
.column31 { width: 296px; margin: 0 18px 0 0; float: left; }
.column4 { }