.pop{
  display: none;
}
.pop_black{
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0px;
  left: 0px;
  z-index: 10000;
  background-color: rgba(0,0,0,0.6);
}
.pop_box{
  width: 100%;
  height: 100%;
  position: fixed;
  top: 50%;
  left: 0px;
  z-index: 20000;
  margin-top: -250px;
}
.pop_b{
  margin: auto;
  width: 400px;
  background-color: #fff;
  border-radius: 20px;
  padding: 40px;
  text-align: center;
}
.pop_title{
  margin: 20px;
}
.pop_code_img{
  width: 250px;
  height: 250px;
}
.pop_del{
  text-align: center;
  padding: 20px;
}
.pop_code_del{
  width: 40px;
  height: 40px;
}