.popup {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: .6s;
}

.popup.is-show {
  opacity: 1;
  visibility: visible;
}

.popup-inner {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  width: 80%;
  padding: 50px;
  background-color: #fff;
  background-image: url(../images/bg_pattern_pop.png);
  background-repeat: repeat;
  z-index: 2;
}

.close-btn {
  position: absolute;
  right: 0;
  top: 0;
  width: 50px;
  height: 50px;
  line-height: 50px;
  text-align: center;
  cursor: pointer;
}

.close-btn i {
  font-size: 20px;
  color: #333;
}

.black-background {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,.8);
  z-index: 1;
  cursor: pointer;
}