app/node_modules/ng-zorro-antd/image/style/index.less

@import '../../style/themes/index';
@import '../../style/mixins/index';

@image-prefix-cls: ~'@{ant-prefix}-image';
@image-preview-prefix-cls: ~'@{image-prefix-cls}-preview';

.@{image-prefix-cls} {
  position: relative;
  display: inline-block;

  &-img {
    width: 100%;
    height: auto;
    vertical-align: middle;

    &-placeholder {
      background-color: @image-bg;
      background-image: url('data:image/svg+xml;base64,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');
      background-repeat: no-repeat;
      background-position: center center;
      background-size: 30%;
    }
  }

  &-mask {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: @text-color-inverse;
    background: fade(@black, 50%);
    cursor: pointer;
    opacity: 0;
    transition: opacity @animation-duration-slow;

    &-info {
      padding: 0 @padding-xss;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      .@{iconfont-css-prefix} {
        margin-inline-end: @margin-xss;
      }
    }

    &:hover {
      opacity: 1;
    }
  }

  &-placeholder {
    .box();
  }

  &-preview {
    .modal-mask();

    height: 100%;
    text-align: center;

    &-body {
      .box();
      overflow: hidden;
    }

    &-img {
      max-width: 100%;
      max-height: 100%;
      vertical-align: middle;
      transform: scale3d(1, 1, 1);
      cursor: grab;
      transition: transform 0.3s @ease-out 0s;
      user-select: none;
      pointer-events: auto;

      &-wrapper {
        .box();
        transition: transform 0.3s @ease-out 0s;

        &::before {
          display: inline-block;
          width: 1px;
          height: 50%;
          margin-right: -1px;
          content: '';
        }
      }
    }

    &-moving {
      .@{image-prefix-cls}-preview-img {
        cursor: grabbing;

        &-wrapper {
          transition-duration: 0s;
        }
      }
    }

    &-wrap {
      z-index: @zindex-image;
    }

    &-operations-wrapper {
      position: fixed;
      top: 0;
      right: 0;
      z-index: @zindex-image + 1;
      width: 100%;
    }

    &-operations {
      .reset-component();
      display: flex;
      flex-direction: row-reverse;
      align-items: center;
      color: @image-preview-operation-color;
      list-style: none;
      background: fade(@modal-mask-bg, 10%);
      pointer-events: auto;

      &-operation {
        margin-left: @control-padding-horizontal;
        padding: @control-padding-horizontal;
        cursor: pointer;
        transition: all 0.3s;

        &:hover {
          background: fade(@modal-mask-bg, 20%);
        }

        &-disabled {
          color: @image-preview-operation-disabled-color;
          pointer-events: none;
        }

        &:last-of-type {
          margin-left: 0;
        }
      }

      &-progress {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
      }

      &-icon {
        font-size: @image-preview-operation-size;
      }
    }

    &-switch-left,
    &-switch-right {
      position: fixed;
      top: 50%;
      right: 8px;
      z-index: @zindex-image + 1;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      color: @image-preview-operation-color;
      background: fade(@modal-mask-bg, 10%);
      border-radius: 50%;
      transform: translateY(-50%);
      cursor: pointer;
      transition: all 0.3s;
      pointer-events: auto;

      &:hover {
        background: fade(@modal-mask-bg, 20%);
      }

      &-disabled,
      &-disabled:hover {
        color: @image-preview-operation-disabled-color;
        background: fade(@modal-mask-bg, 10%);
        cursor: not-allowed;
        > .@{iconfont-css-prefix} {
          cursor: not-allowed;
        }
      }

      > .@{iconfont-css-prefix} {
        font-size: 18px;
      }
    }

    &-switch-left {
      left: 8px;
    }

    &-switch-right {
      right: 8px;
    }

    &-focus-trap {
      width: 0;
      height: 0;
      overflow: hidden;
      outline: none;
    }
  }
}