*,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-size: 1rem;
      font-weight: 400;
      line-height: 1.5;
      color: #212529;
      background-color: #fff;
      -webkit-text-size-adjust: 100%;
      -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
      min-width: 550px;
    }

    .slider__container {
      position: relative;
      margin-left: 200px;
    }

    .slider {
      max-width: 310px;
      flex: 0 0 310px;
      margin-left: unset;
      margin-right: unset;
    }

    /* дополнительные стили для этого примера */
    .slider__items {
      counter-reset: slide;
    }

    .slider__item {
      counter-increment: slide;
      display: flex;
      background-color: #eee;
    }

    .slider__item::before {
      content: counter(slide);
      position: absolute;
      top: 10px;
      right: 20px;
      color: #fff;
      font-style: italic;
      font-size: 32px;
      font-weight: bold;
    }

    .slider img {
      max-width: 100%;
      height: auto;
    }

    .slider__thumbnails {
      position: absolute;
      display: flex;
      flex-flow: column wrap;
      align-content: center;
      width: 150px;
      left: -175px;
      top: 0;
      height: 100%;
    }

    .slider__thumbnails-item {
      line-height: 0;
      max-width: 52px;
      margin: 0 10px 10px 0;
      opacity: .5;
      border-radius: 8px;
      overflow: hidden;
      transition: 0.15s opacity ease-in-out;
    }

    .slider__thumbnails-item.active {
      opacity: 1;
    }

    .slider__thumbnails-item:hover {
      opacity: 1;
    }

    .slider__thumbnails-item>img {
      display: inline-block;
      width: 100%;
      height: auto;
    }

    .slider__indicators {
      display: none;
    }

    .image-open {
      background: rgba(255, 255, 255, 0.3);
      border-radius: 12px 40px 12px 12px;
      position: absolute;
      padding: 10px 16px 6px;
      left: 8px;
      bottom: 8px;
      cursor: pointer;
      transition: background-color .15s ease-in-out;
      line-height: 1;
    }

    .image-open:hover {
      background: rgba(255, 255, 255, 0.5);
    }

    .image-open::before {
      content: '';
      display: inline-block;
      width: 24px;
      height: 24px;
      background: transparent no-repeat center center;
      background-size: 100% 100%;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23fff' d='M505 442.7L405.3 343c-4.5-4.5-10.6-7-17-7H372c27.6-35.3 44-79.7 44-128C416 93.1 322.9 0 208 0S0 93.1 0 208s93.1 208 208 208c48.3 0 92.7-16.4 128-44v16.3c0 6.4 2.5 12.5 7 17l99.7 99.7c9.4 9.4 24.6 9.4 33.9 0l28.3-28.3c9.4-9.4 9.4-24.6.1-34zM208 336c-70.7 0-128-57.2-128-128 0-70.7 57.2-128 128-128 70.7 0 128 57.2 128 128 0 70.7-57.2 128-128 128z'/%3E%3C/svg%3E");
    }



    .slider-overflow__container {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: rgba(0, 0, 0, 0.9);
      display: none;
    }

    .slider-overflow__container_show {
      display: flex;
    }

    .slider-overflow {
      margin-left: auto;
      margin-right: auto;
    }

    .slider-overflow .slider__wrapper {
      height: 100%;
      margin-left: auto;
      margin-right: auto;
    }

    .slider-overflow .slider__items {
      height: 100%;
    }

    .slider-overflow img {
      max-height: 100%;
      width: auto;
    }

    .btn-close {
      position: absolute;
      top: 1rem;
      right: 1rem;
      z-index: 2;
      padding: 1.25rem 1rem;
      box-sizing: content-box;
      width: 2em;
      height: 2em;
      padding: 0.25em 0.25em;
      color: #000;
      background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/2em auto no-repeat;
      border: 0;
      border-radius: 0.25rem;
      opacity: 0.5;
    }

    .btn-close:hover {
      color: #000;
      opacity: 0.75;
    }

    .btn-close:focus {
      outline: 0;
      box-shadow: none;
      opacity: 0.75;
    }