#bg { background: none; }
#bg div.bg-block { display: block; width: 2500px; height: 1530px; background: url(/i/bg-main1.jpg) top center no-repeat; position: absolute; top: 0; left: 1px; z-index: -1; }
#bg div.bg-block2 { background: url(/i/bg-main2.jpg) top center no-repeat; position: absolute; top: 1530px; height: 1610px; }
#bg div.bg-block3 { background: url(/i/bg-main3.jpg) top center no-repeat; position: absolute; top: 3140px; height: 1745px; }
#bg div.bg-block4 { background: url(/i/bg-main4.jpg) top center no-repeat; position: absolute; top: 4885px; height: 1274px; }