h2 {
  border-top: 1px solid black;
  width: 500px;
  margin: 0 auto;
  font-size: 18px;
  padding: 0;
  padding-top: 35px;
  text-align: center;
  position: relative;
  top: -1em;
}

h3 {
  text-align: center;
  font-size: 16px;
  font-weight: normal;
  padding: 0;
  position: relative;
  top: -1.2em;
}


#content .graphs div {
  text-align: center;
}

#content .graphs div svg {
  display: inline;
}