components/web_app_resources/web_app_default_offline.css

/* Copyright 2022 The Chromium Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

@media (prefers-color-scheme: light) {
  body {
    background-color: rgb(255, 255, 255);
  }
  div {
    color: rgb(31, 31, 31);
  }
 }

@media (prefers-color-scheme: dark) {
  body {
    background-color: rgb(31, 31, 31);
  }
  div {
    color: rgb(227, 227, 227);
  }
}

.center {
  left: 50%;
  position: fixed;
  top: 50%;
  transform: translate(-50%, -50%);
}
.center-bottom {
  left: 50%;
  position: fixed;
  top: 90%;
  transform: translate(-50%, -50%);
}
.icon {
  height: 160px;
  width: 160px;
}
.message {
  font-family: 'system-ui', sans-serif;
  font-size: 18px;
  text-align: center;
  width: 80%;
}