html, body {
  width: 100%;
  height: 100%;
}

body {
  background: rgba(200, 200, 200, 0.7);
  display: flex;
  justify-content: center;
  font-family: Helvetica, sans-serif;
}

h1, h2, h3, h4, h5, h6, p, td {
  padding: 6px;
}

section {
  padding: 8px;
}

section h1 {
  font-size: 1.2em;
  font-weight: bold;
}

section span {
  color: #E77;
  text-decoration: underline;
}

tr {
  border: 1px solid rgba( 0, 0, 0, 0.5 );
}

td {
  border-right: 1px solid rgba(0, 0, 0, 0.25);
}

img {
  width: 32px;
  height: 32px;
}

.manual {
  background: white;
  width: 70%;
  padding: 10px;
  color: #444;
  padding: 80px;
  overflow: auto;
}


.manual > h1 {
  font-size: 1.8em;
  font-weight: bold;
}

.manual > h2 {
  font-size: 1.2em;
  font-style: oblique;
  font-weight: lighter;
  color: #777;
}

.flex {
  display: flex;
}