body {
    font-family: "helvetica", sans-serif;
    text-align: left;
    font-size: 1em;
    line-height: 1.5em;
    margin: 2em auto;
    margin-bottom: 9em;
    max-width: 40em;
  }

.definition {
    border-bottom: 1px solid #e5e5e5;
  }

p {
  text-indent: 2em;
}

footer {
  height: 2em;
}