Source/WebInspectorUI/UserInterface/Views/ScreenshotsTimelineView.css

/*
 * Copyright (C) 2022 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. AND ITS CONTRIBUTORS ``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 ITS 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.
 */

.timeline-view.screenshots > .content-view {
    position: absolute;
    inset: 0;
    text-align: center;
    white-space: nowrap; 
    overflow-x: auto;
    background-color: hsl(0, 0%, 90%);
}

.timeline-view.screenshots > .content-view > .spacer {
    display: inline-block;
    height: 50%;
}

.timeline-view.screenshots > .content-view > img {
    max-width: calc(80% - (var(--margin) * 2));
    max-height: calc(100% - (var(--margin) * 2));
    margin: var(--margin);
    vertical-align: middle;
    box-shadow: var(--shadow);

    --margin: 20px;
    --shadow: 1px 2px 6px rgba(0, 0, 0, 0.58);
}

.timeline-view.screenshots > .content-view > img + img {
    margin-inline-start: 0;
}

.timeline-view.screenshots > .content-view > img.selected {
    box-shadow: 0 0 0 2px var(--glyph-color-active), var(--shadow);
}

@media (prefers-color-scheme: dark) {
    .timeline-view.screenshots > .content-view {
        background-color: hsl(0, 0%, 14%);
    }
}