store/unpackage/dist/dev/mp-weixin/components/tki-qrcode/tki-qrcode.wxss

.tki-qrcode {
  position: relative;
}
.tki-qrcode-canvas {
  position: fixed;
  top: -99999rpx;
  left: -99999rpx;
  z-index: -99999;
}