.shadow-btn {
  .shadow(@color) {
    box-shadow: 0 8px 25px -8px @color;
    background-color: @color;
  }
  &.blue-btn {
    .shadow(@blue);
  }
  &.pink-btn {
    .shadow(@pink);
  }
  &.red-btn {
    .shadow(@red);
  }
  &.green-btn {
    .shadow(@green);
  }
  &.yellow-btn {
    .shadow(@yellow);
  }
  &.orange-btn {
    .shadow(@orange);
  }
  &.purple-btn {
    .shadow(@purple);
  }
  &.black-btn {
    .shadow(@black);
  }
  &.white-btn {
    .shadow(@white);
  }
}