.gapp-win {
  display: none;
  margin: auto;
  position: fixed;
  top: 100px;
  left: 25%;
  z-index: 1011;
}
.gapp-win.show {
  display: block;
}
.gapp-win .gapp-win-wrapper {
  overflow: auto;
  padding: 10px 20px;
  transition: width 0.5s ease-out, height 0.5s ease-out, bottom 0.5s ease-out, background-color 0.5s;
  box-shadow: 15px 15px 25px 5px rgba(50, 50, 50, 0.65);
  border-radius: 5px;
  background-color: #fff;
  border: 1px dotted #5f9fcb;
  position: relative;
}
.gapp-win .close-btn {
  position: absolute;
  border-radius: 100%;
  color: #fff;
  width: 30px;
  height: 30px;
  line-height: 30px;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
  background-color: #ccc;
  top: -15px;
  right: -15px;
}
.gapp-win .close-btn:hover {
  background-color: #944;
}
.gapp-win-mask {
  background-color: rgba(0, 0, 0, 0.35);
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1010;
  display: none;
}
.gapp-win-mask.show {
  display: block;
}