react-image-crop/lib/ReactCrop.scss

// SASS variables for normal drag handle and bar size.
// Override in your scss file by setting these variables FIRST, then including this file.
$drag-handle-width: 10px !default;
$drag-handle-height: 10px !default;
$drag-bar-size: 6px !default;

// Query to kick us into "mobile" mode with larger drag handles/bars.
// See: https://developer.mozilla.org/en-US/docs/Web/CSS/@media/pointer
$mobile-media-query: '(pointer: coarse)' !default;

// Mobile handle/bar sizes.  Override as above.
$drag-handle-mobile-width: 24px !default;
$drag-handle-mobile-height: 24px !default;

// Handle color/border.
$drag-handle-background-colour: rgba(0, 0, 0, 0.2) !default;
$drag-handle-border: 1px solid rgba(255, 255, 255, 0.7) !default;

.ReactCrop {
  position: relative;
  display: inline-block;
  cursor: crosshair;
  overflow: hidden;
  max-width: 100%;

  &:focus {
    outline: none;
  }

  &--disabled,
  &--locked {
    cursor: inherit;
  }

  &__image {
    display: block;
    max-width: 100%;
    touch-action: manipulation;
  }

  &__crop-selection {
    position: absolute;
    top: 0;
    left: 0;
    transform: translate3d(0, 0, 0);
    box-sizing: border-box;
    cursor: move;
    box-shadow: 0 0 0 9999em rgba(0, 0, 0, 0.5);
    touch-action: manipulation;

    .ReactCrop--disabled & {
      cursor: inherit;
    }

    .ReactCrop--circular-crop & {
      border-radius: 50%;
      box-shadow: 0px 0px 1px 1px white, 0 0 0 9999em rgba(0, 0, 0, 0.5);
    }

    border: 1px solid;
    border-image-source: url('data:image/gif;base64,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');
    border-image-slice: 1;
    border-image-repeat: repeat;
  }
  &--invisible-crop &__crop-selection {
    display: none;
  }

  &__rule-of-thirds-vt::before,
  &__rule-of-thirds-vt::after,
  &__rule-of-thirds-hz::before,
  &__rule-of-thirds-hz::after {
    content: '';
    display: block;
    position: absolute;
    background-color: rgba(255, 255, 255, 0.4);
  }

  &__rule-of-thirds-vt {
    &::before,
    &::after {
      width: 1px;
      height: 100%;
    }

    &::before {
      left: 33.3333%;
      left: calc(100% / 3);
    }

    &::after {
      left: 66.6666%;
      left: calc(100% / 3 * 2);
    }
  }

  &__rule-of-thirds-hz {
    &::before,
    &::after {
      width: 100%;
      height: 1px;
    }

    &::before {
      top: 33.3333%;
      top: calc(100% / 3);
    }

    &::after {
      top: 66.6666%;
      top: calc(100% / 3 * 2);
    }
  }

  &__drag-handle {
    position: absolute;

    &::after {
      position: absolute;
      content: '';
      display: block;
      width: $drag-handle-width;
      height: $drag-handle-height;
      background-color: $drag-handle-background-colour;
      border: $drag-handle-border;
      box-sizing: border-box;

      // This stops the borders disappearing when keyboard
      // nudging.
      outline: 1px solid transparent;
    }
  }

  .ord-nw {
    top: 0;
    left: 0;
    margin-top: -(ceil($drag-handle-height / 2));
    margin-left: -(ceil($drag-handle-width / 2));
    cursor: nw-resize;

    &::after {
      top: 0;
      left: 0;
    }
  }
  .ord-n {
    top: 0;
    left: 50%;
    margin-top: -(ceil($drag-handle-height / 2));
    margin-left: -(ceil($drag-handle-width / 2));
    cursor: n-resize;

    &::after {
      top: 0;
    }
  }
  .ord-ne {
    top: 0;
    right: 0;
    margin-top: -(ceil($drag-handle-height / 2));
    margin-right: -(ceil($drag-handle-width / 2));
    cursor: ne-resize;

    &::after {
      top: 0;
      right: 0;
    }
  }
  .ord-e {
    top: 50%;
    right: 0;
    margin-top: -(ceil($drag-handle-height / 2));
    margin-right: -(ceil($drag-handle-width / 2));
    cursor: e-resize;

    &::after {
      right: 0;
    }
  }
  .ord-se {
    bottom: 0;
    right: 0;
    margin-bottom: -(ceil($drag-handle-height / 2));
    margin-right: -(ceil($drag-handle-width / 2));
    cursor: se-resize;

    &::after {
      bottom: 0;
      right: 0;
    }
  }
  .ord-s {
    bottom: 0;
    left: 50%;
    margin-bottom: -(ceil($drag-handle-height / 2));
    margin-left: -(ceil($drag-handle-width / 2));
    cursor: s-resize;

    &::after {
      bottom: 0;
    }
  }
  .ord-sw {
    bottom: 0;
    left: 0;
    margin-bottom: -(ceil($drag-handle-height / 2));
    margin-left: -(ceil($drag-handle-width / 2));
    cursor: sw-resize;

    &::after {
      bottom: 0;
      left: 0;
    }
  }
  .ord-w {
    top: 50%;
    left: 0;
    margin-top: -(ceil($drag-handle-height / 2));
    margin-left: -(ceil($drag-handle-width / 2));
    cursor: w-resize;

    &::after {
      left: 0;
    }
  }

  // Use the same specificity as the ords above but just
  // come after.
  &__disabled &__drag-handle {
    cursor: inherit;
  }

  &__drag-bar {
    position: absolute;

    &.ord-n {
      top: 0;
      left: 0;
      width: 100%;
      height: $drag-bar-size;
      margin-top: -($drag-bar-size / 2);
    }
    &.ord-e {
      right: 0;
      top: 0;
      width: $drag-bar-size;
      height: 100%;
      margin-right: -($drag-bar-size / 2);
    }
    &.ord-s {
      bottom: 0;
      left: 0;
      width: 100%;
      height: $drag-bar-size;
      margin-bottom: -($drag-bar-size / 2);
    }
    &.ord-w {
      top: 0;
      left: 0;
      width: $drag-bar-size;
      height: 100%;
      margin-left: -($drag-bar-size / 2);
    }
  }

  &--new-crop &__drag-bar,
  &--new-crop &__drag-handle,
  &--fixed-aspect &__drag-bar {
    display: none;
  }

  &--fixed-aspect &__drag-handle.ord-n,
  &--fixed-aspect &__drag-handle.ord-e,
  &--fixed-aspect &__drag-handle.ord-s,
  &--fixed-aspect &__drag-handle.ord-w {
    display: none;
  }

  @media #{$mobile-media-query} {
    .ord-n,
    .ord-e,
    .ord-s,
    .ord-w {
      display: none;
    }

    &__drag-handle {
      width: $drag-handle-mobile-width;
      height: $drag-handle-mobile-height;
    }
  }
}