#contentleft {
  float: left;
  width: 300px;
  margin: 0;
  padding: 1em;
}

#contentmain {
  margin-left: 300px;
  margin-right: 0px;
  text-align: left;
  padding: 1em;
  max-width: 36em;
}

#contentmain h1 {
  font-family: Arial;
  font-size: 30px;
  margin-top: 3px;
  margin-bottom: 17px;
}

#contentmain h3 {
  font-family: Arial;
  font-size: 16px;
  margin-top: 0px;
  margin-bottom: 5px;
}

#contentmain h4 {
  font-family: Arial;
  font-style: italic;
  font-size: 18px;
}

#contentmain img {
  border-style: none;
}