* {
  box-sizing: border-box;
}

body {
  font-family: 'Calibri', 'Verdana', sans-serif;
  line-height: 1.5em;
  color: #333;
  background: #fff9ef;
  margin: 2em auto;
  padding: 2em;
  max-width: 700px;
}

img {
  display: block;
  margin: 2em auto;
  max-width: 100%;
}


/* heading and text styles */

h1, h2 {
  font-family: 'Cambria', 'Georgia', serif;
  font-size: 3em;
  font-weight: normal;
  line-height: normal;
  margin: 0;
}

h2 {
  font-size: 2em;
  padding-top: 1em;
}

code {
  font-family: 'Consolas', monospace;
}

ul {
  list-style: none;
}


/* classes */

.special {
  font-weight: bold;
  font-style: italic;
  color: #9b2595;
}

.example {
  border: 1px solid #999;
  margin: 2em auto;
  margin-bottom: 0.5em;
}

.caption {
  margin-top: 0;
  padding-top: 0;
}

/* links */

a {
  color: #237b93;
  text-decoration: underline;
}

a:hover {
  color: #d332cb;
  text-decoration: none;
}