.fullmask {
  width: 100%; height: 100%; position: fixed; top: 0px; left: 0px;
   background: rgba(0, 0, 0, 0.9);
  z-index: 999999;
  display: none;
}
.fullmask.dis {
  display: block;
}
 .popcontbox {
  display: none;
  width: 1280px;
  height: 720px;
  position: fixed;
  left: 50%;
  top: 50%;
  margin: -392px 0 0 -640px;
  z-index: 9999999;
  background: #000;
}
 .popcontbox.dis {
  display: block;
}
 .popcontbox .vidbox {
  width: 100%;
  height: 100%;
}

.popcontbox .close {
  position: absolute;
  top: 0px;
  right: -48px;
  width: 48px;
  height: 48px;
  background: url(https://static.web.sdo.com/jijiamobile/pic/ff14/web7/button_close.png) center top no-repeat;
  cursor: pointer;
}
.popcontbox .close:hover {
  background-position: 0px -48px;
}