pdf.js/web/draw_layer_builder.css

/* Copyright 2014 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

.canvasWrapper {
  svg {
    transform: none;

    &[data-main-rotation="90"] {
      use:not(.clip) {
        transform: matrix(0, 1, -1, 0, 1, 0);
      }
    }

    &[data-main-rotation="180"] {
      use:not(.clip) {
        transform: matrix(-1, 0, 0, -1, 1, 1);
      }
    }

    &[data-main-rotation="270"] {
      use:not(.clip) {
        transform: matrix(0, -1, 1, 0, 0, 1);
      }
    }

    &.highlight {
      --blend-mode: multiply;

      @media screen and (forced-colors: active) {
        --blend-mode: difference;
      }

      position: absolute;
      mix-blend-mode: var(--blend-mode);

      &:not(.free) {
        fill-rule: evenodd;
      }
    }

    &.highlightOutline {
      position: absolute;
      mix-blend-mode: normal;
      fill-rule: evenodd;
      fill: none;

      &.hovered {
        stroke: var(--hover-outline-color);
        stroke-width: var(--outline-width);
      }

      &.selected {
        .mainOutline {
          stroke: var(--outline-around-color);
          stroke-width: calc(
            var(--outline-width) + 2 * var(--outline-around-width)
          );
        }

        .secondaryOutline {
          stroke: var(--outline-color);
          stroke-width: var(--outline-width);
        }
      }
    }
  }
}