web/style.css

/**
 * @license
 * 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.
 *
 * SPDX-FileCopyrightText: The Apache Software Foundation
 * SPDX-License-Identifier: Apache-2.0
 */

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  line-height: 1.5;
  margin: 2rem;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
}

h1 { font-size: 1.4em; }
h2 { font-size: 1.2em; }
h3 { font-size: 1.1em; }

header {
  border-bottom: 1px solid lightgrey;
  font-size: 0.8em;
}

nav {
  margin: 2rem;
}

main > *:not(.full-width) {
  max-width: 40rem;
  margin: 2rem auto;
}

blockquote {
  font-style: italic;
}

li {
  margin-top: 1em;
}

mark {
  background-color: rgba(255, 255, 0, 0.5);
  outline: 1px solid rgba(255, 100, 0, 0.8);
}

.columns {
  display: flex;
  flex-flow: row wrap;
}

.column {
  min-width: 10rem;
  width: 10rem;
  flex-grow: 1;
  margin: 1rem;
}