#footer { margin-top: 0; }
.area { width: 100%; background-position: 50% 0; }
.area .box { margin: 0 auto; width: 980px; }
#area { background-color: #000; }

#area1 { height: 547px; background-image: url(area_01.jpg); }
#area2 { height: 1133px; background-image: url(area_02.jpg); }
#area3 { height: 1220px; background-image: url(area_03.jpg); }