body {
    margin: 0 auto;
    max-width: 50em;
    font-family: "Helvetica", "Arial", sans-serif;
    line-height: 1.5;
    padding: 4em 1em;
}

h1 {
    text-align: center;
}

h2 {
    margin-top: 1em;
  padding-top: 1em;
}

.figure {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width:100%;
 }

code,
pre {
  background: #eee;
}

code {
    padding: 2px 4px;
    vertical-align: text-bottom;
  }
  
  pre {
    padding: 1em;
  }