.modal-main {
  display: none;
  width: 500px;
  height: 300px;
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #666666;
  position: fixed;
  z-index: 2;
}
.modal-bg {
  display: none;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
}