src/third_party/devtools/front_end/ui/popover.css

/*
 * Copyright 2017 The Chromium Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

.widget {
    display: flex;
    background: white;
    box-shadow: var(--drop-shadow);
    border-radius: 2px;
    overflow: auto;
    user-select: text;
    line-height: 11px;
}

.widget.has-padding {
    padding: 6px;
}