.qr-container{
  width: 100vw;
  height: 100vh;
display: flex;
/* align-items: center; */
justify-content: center;
}
.qr-show{
  width: 500rpx;
  height: 500rpx;
  /* background-color: aqua; */
  margin-top: 300rpx;
}
.qr-show image{
  width: 100%;
  height: 100%;
}