html, body {
    margin: 0;
    padding: 0;
  }

  * {
    box-sizing: border-box;
  }

  .slider {
    width: 95%;
    margin: 10px auto;
  }

  .slick-slide {
    margin: 0px 20px;
  }

  .slick-slide img {
    width: 100%;
  }

  .slick-prev:before,
  .slick-next:before {
    color: black;
  }

  @media screen and (min-width: 320px) and (max-width: 767px) {
    .slider {
      width: 80%;
      margin: 10px auto;
    }
  }