[type="file"] {
  border: 0;
  clip: rect(0, 0, 0, 0);
  height: 1px;
  overflow: hidden;
  padding: 0;
  position: absolute !important;
  white-space: nowrap;
  width: 1px;
}
[type="file"] + label {
  /* File upload button styles */
}
[type="file"]:focus + label,
[type="file"] + label:hover {
  /* File upload hover state button styles */
}
[type="file"]:focus + label {
  /* File upload focus state button styles */
}