body {
  background-color: #292a38;
}

.rotation3D-baseMap {
  position: absolute;
  left: 23px;
  right: 0;
  top: 99px;
  margin: auto;
  width: 1316px;
  height: 516px;
  background: url("../js/rotation3D/img/baseMap.png") no-repeat;
  background-size: 80% 80%;
}

.rotation3D-baseMap::before {
  position: absolute;
  left: -218px;
  right: 0;
  top: -116px;
  margin: auto;
  z-index: 99;
  width: 338px;
  height: 318px;
  display: block;
  content: "";
  background: url("../../image/dongye/999.png") no-repeat;
  animation: 10s bounceUpDown infinite;
}