* { box-sizing: border-box; } body {margin: 0;}#ibwj{background-color:#ffffff;background-repeat:no-repeat;background-size:cover;background-position:center center;}#iupf{background-color:#ffffff;height:auto;}#ihbjt{background-color:#ffffff;background-repeat:no-repeat;background-position:center;background-size:cover;}#ifwym{background-color:rgb(210, 232, 255);background-repeat:no-repeat;background-size:cover;background-position:center center;height:auto;}