body {
  background: #000;
  color: #fff;
  font-family: sans-serif;
  margin: 0;
  padding: 0;
}
nav .menu {
  list-style: none;
  display: flex;
  background: #111;
  margin: 0;
  padding: 10px;
}
nav .menu li {
  margin-right: 20px;
}
nav .menu a {
  color: #fff;
  text-decoration: none;
}
.dashboard {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}
.dashboard td {
  border: 1px solid #222;
  padding: 10px;
  vertical-align: top;
}
.panel {
  text-align: center;
}
.graph {
  width: 100%;
  height: auto;
}
.value {
  margin-top: 10px;
  font-size: 1.5em;
}
.subvalue {
  font-size: 0.9em;
  color: #ccc;
}
.extremes {
  font-size: 0.9em;
  color: #ccc;
  margin-top: 5px;
}