body {
  margin: auto;
  padding-left: 1em;
  padding-right: 1em;
  padding-top: 4em;
  padding-bottom: 4em;

  line-height: 1.5;
}

.title { font-size: 1.1em; }

.article-meta {
  text-align: center;
  text-decoration: none;
  background: #eee;
  padding: 5px;
  border-radius: 5px;
}

hr {
  border-style: dashed;
  color: #ddd;
}

.menu {
  margin: 0;
  background: #ffffff;
  border-bottom: 1px solid #555;

  position: fixed;
  top: 0;
  left: 0;
  width: 100%;

  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;

  padding: 0.5rem 0.5rem;
  box-sizing: border-box;

  z-index: 1000;
}
.menu-group {
  display: flex;
  gap: 0.5rem;

  list-style: none;
  margin: 0;
  padding: 0;
}
.menu-group.left {
  justify-self: start;
}
.menu-group.center {
  justify-self: center;
}
.menu-group.right {
  justify-self: end;
}
.menu li a {
  display: block;
  padding: 0.5rem 1rem;
  background: #4a90e2;
  color: white;
  text-decoration: none;
  border-radius: 12px;
  transition: background 0.2s ease;
}
.menu li a:hover {
  background: #555;
}

footer {
    padding: 1.0rem 1.0rem 1.0rem 1.0rem;
    color: black;
    text-align: center;
    background: #ffffff;
    border-top: 1px solid #555;

    text-align: center;

    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;

    z-index: 1000;
}
footer a { text-decoration: none; }

pre {
  border: 1px solid #ddd;
  box-shadow: 5px 5px 5px #eee;
  padding: 1em;
  overflow-x: auto;
}
code { background: #f9f9f9; }
pre code { background: none; }

table {
  margin: auto;
  border-top: 1px solid #666;
  border-bottom: 1px solid #666;
}
table thead th { border-bottom: 1px solid #ddd; }
th, td { padding: 5px; }
thead, tfoot, tr:nth-child(even) { background: #eee; }

img, iframe, video { max-width: 100%; }

main { hyphens: auto; }

blockquote {
  background: #f9f9f9;
  border-left: 5px solid #ccc;
  padding: 3px 1em 3px;
}