body {
  font-family: Arial, sans-serif;
  width: 80%;
  margin-left: auto;
  margin-right: auto;
}

header {
  text-align: center;
}

section {
  margin-top: 40px;
}

h1, h2, h3, h4, h5, pre {
  margin-bottom: 2px;
}


h1, h2, h3, h4 {
  color: #3AA8D8;
  font-weight: bold;
}

pre, h5 {
  margin-top: 0px;
}

h5 {
  font-size: 1.0em;
}

code {
  font-size: 1.2em;
}

p {
  margin-top: 0px;
}

.tt {
  font-family: "Courier New", serif;
  color: #3AA8D8;
}