textselect.css

/*
 * This file contains work derived from https://github.com/mozilla/pdf.js/blob/master/web/viewer.css
 * licenced as follows:
 *
 *   Copyright 2012 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.
 */

.textLayer {
    position: relative;
    color: #000;
    font-family: sans-serif;
}

.textLayer > div {
    color: transparent;
    position: absolute;
    line-height:1.3;
}

.textLayer > div::selection { background:rgba(0,0,0,0.3); }
.textLayer > div::-moz-selection { background:rgba(0,0,0,0.3); }