.pop-bg {
  position: fixed;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 9999;
  top: 0;
  left: 0;
}
.pop-bg .pop-box {
  position: absolute;
  top: 40%;
  left: 50%;
  width: 397px;
  height: 417px;
  background-image: url("../images/springbox.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
}
.pop-bg .pop-box .close-btn {
  position: absolute;
  bottom: 0px;
  left: 50%;
  width: 280px;
  height: auto;
  transform: translate(-54.5%, 0%);
  -webkit-transform: translate(-54.5%, 0%);
  cursor: pointer;
}