form input[type='file'] {
  visibility: hidden;
  position: absolute;
  z-index: -1;
}
.idcard-bg {
  width: 20em;
  height: 13em;
  border: 1px #ccc solid;
  border-radius: 1em;
  position: relative;
  overflow: hidden;
}
.idcard-bg .button {
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -1.6em;
  margin-top: -1.6em;
}
.idcard-bg img {
  width: 100%;
  height: 100%;
}
