guacamole/src/main/webapp/app/index/styles/fatal-page-error.css

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

.fatal-page-error-outer {
    display: table;
    height: 100%;
    width: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 30;
}

.fatal-page-error-middle {
    width: 100%;
    text-align: center;
    display: table-cell;
    vertical-align: middle;
}

.fatal-page-error {
    display: inline-block;
    width: 100%;
    max-width: 5in;
    padding: 1em;
    text-align: left;
}

.fatal-page-error h1 {
    text-transform: uppercase;
    padding: 0;
    padding-right: 1em;
}

.fatal-page-error h1::before {
    content: ' ';
    display: inline-block;
    background: url('images/warning.png');
    background-repeat: no-repeat;
    height: 1em;
    width: 1em;
    background-size: contain;
    margin: 0 0.25em;
    margin-bottom: -0.2em;
}

/* Ensure fatal error is initially hidden, fading the error message in when
 * needed */

.fatal-page-error-outer {
    visibility: hidden;
    opacity: 0;
    transition: opacity, visibility;
    transition-duration: 0.25s;
}

.shown.fatal-page-error-outer {
    visibility: visible;
    opacity: 1;
}