.uv-iiif-extension-host.uv-pdf-extension {
  .centerPanel {
    .content {
      position: relative;

      .pdfContainer {
        overflow: auto;
        text-align: center;

        canvas {
          display: inline;
        }
      }

      .spinner {
        position: absolute;
        width: 27px;
        height: 27px;
        border-radius: 27px;
        .loading(@loader-black-bg);
      }

      progress {
        position: absolute;
        width: 100px;
        height: 10px;
      }

      button {
        color: #fff;
      }

      // canvas {
      //     position: absolute;
      // }

      .container {
        margin: 0 20px;
      }

      .btn {
        position: absolute !important;
        width: 30px;
        height: 90px;
        background-repeat: no-repeat;
        background-color: @body-bg;
        background-position: 0 50%;
        cursor: pointer;
        padding: 0;
        border: none;
        border-radius: 0;

        &.zoomIn {
          cursor: pointer !important;
          background-image: data-uri("../img/zoom_in.png") !important;
          width: 28px;
          height: 28px;
          margin: 3px !important;
          top: 0;
          left: 0;
          img {
            display: none;
          }
          &:focus {
            .tab-focus();
          }
        }

        &.zoomOut {
          cursor: pointer !important;
          background-image: data-uri("../img/zoom_out.png") !important;
          width: 28px;
          height: 28px;
          margin: 3px !important;
          top: 0;
          left: 32px;
          img {
            display: none;
          }
          &:focus {
            .tab-focus();
          }
        }

        &.prev {
          margin-left: 5px;
          background-image: data-uri("../img/left_arrow.png");
          &.disabled {
            background-image: data-uri("../img/left_arrow_disabled.png");
          }
        }

        &.next {
          margin-right: 20px;
          background-image: data-uri("../img/right_arrow.png");
          &.disabled {
            background-image: data-uri("../img/right_arrow_disabled.png");
          }
        }
      }
    }
  }
}