index.scss

#captcha {
  ._nc {
    .stage {
      padding: 0;
    }

    .stage1 {
      height: 48px;

      .label {
        height: 46px;
      }

      .button {
        width: 48px;
        height: 48px;
      }

      .slider {
        height: 48px;
        width: 100%;
        left: 0;
      }
    }
  }
}