.t-upwidget-container__button {
  background-color: #000000 !important;
  color: #ffffff !important;
  border-radius: 10px !important;
}

.t-upwidget-container__button:hover {
  background-color: #222222 !important;
}

.t-upwidget-container__button.t-text {
  font-size: 0 !important;
}

.t-upwidget-container__button.t-text::before {
  content: "Załącz pliki";
  font-size: 16px;
}