Source/WebCore/Modules/modern-media-controls/controls/text-tracks.css

/*
 * Copyright (C) 2016 Apple Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

video::-webkit-media-text-track-container {
    overflow: hidden;
    padding-bottom: 0;
    z-index: 0;

    text-align: center;
    color: rgba(255, 255, 255, 1);

    letter-spacing: normal;
    word-spacing: normal;
    text-transform: none;
    text-indent: 0;
    text-decoration: none;
    pointer-events: none;
    -webkit-user-select: none;

    flex: 1 1 auto;

    -webkit-line-box-contain: block inline-box replaced;
}

video[controls]::-webkit-media-text-track-container.visible-controls-bar {
    height: calc(100% - var(--inline-controls-bar-height) - var(--inline-controls-inside-margin));
}

video::cue {
    background-color: rgba(0, 0, 0, 0.8);
}

video::-webkit-media-text-track-display {
    position: absolute;
    overflow: hidden;
    white-space: pre-wrap;
    box-sizing: border-box;
    font: 22px sans-serif;
}

video::-webkit-media-text-track-display-backdrop {
    display: inline-block;
}

video::cue(:future) {
    color: gray;
}

video::-webkit-media-text-track-container b {
    font-weight: bold;
}

video::-webkit-media-text-track-container u {
    text-decoration: underline;
}

video::-webkit-media-text-track-container i {
    font-style: italic;
}

video::-webkit-media-text-track-container .hidden {
    display: none;
}