.upload-btn-wrapper {
  position: relative;
  overflow: hidden;
  display: inline-block;
}
.upload-btn-style {
  border: none;
  color: rgba(250, 250, 250, 1);
  background-color: rgba(114, 170, 34, 1);
  padding: 8px 20px;
  border-radius: 3px;
  font-size: 14px;
  font-weight: normal;
}
.upload-btn-wrapper input[type=file] {
  font-size: 100px;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
}
.upload-btn-wrapper:hover {
  cursor: pointer;
  opacity: .8;
}