body {
  font-family: verdana, helvetica, sans-serif;
  font-size: 16px;
  color: black;
  background-color: #3060b0;
}

div.container {
  max-width: 56rem;
  float: center;
  margin: auto;
  padding: 0.5rem 0.5rem;
  background-color: #fefefe;
}

header {
  display: table-row;
  background-color: #f0f0ff;
  padding: 0.5rem;
  overflow: auto;
}

header a {
  text-decoration: underline;
  color: black;
}

div.header-left, div.header-right {
  display: table-cell;
  vertical-align: top;
  padding: 0.5rem;
}

div.header-center {
  display: table-cell;
  vertical-align: top;
  overflow: hidden;
  word-wrap: break-word;
  padding: 0.5rem;
  width: 100%;
}

nav {
  display: inline-block;
  width: 100%;
}

footer, article, main {
  display: block;
}

a {
  text-decoration: none;
  color: blue;
}

li {
  color: #400000;
  margin: 0.1rem 0;
}

table {
  width: 100%;
  border-spacing: 0.5rem 0;
}

ul {
  margin: 0;
}

ul.menubar {
  list-style-type: none;
  padding-left: 0;
  text-align: left;
}

ul.menubar li {
  display: inline-block;
  padding-right: 2rem;
  list-style-type: none;
  font-weight: bold;
  font-size: 120%;
}

ul.menubar li a {
  color: blue;
}

ul.menubar li a.highlight {
  color: red;
}

h1 {
  font-size: 150%;
  font-weight: bold;
  margin: 0;
}

h2 {
  font-size: 150%;
  font-weight: bold;
  text-decoration: underline;
}

h3 {
  font-size: 120%;
  font-weight: bold;
}

@media screen and (max-width: 720px) {
  div.container {
    max-width: 100%;
  }
  div.header-left, div.header-center, div.header-right {
    display: inline-block;
  }
  ul.menubar li {
    float: initial;
    padding: 0.2rem;
  }
}