div#contents {
font-size:13px;
  margin-bottom:100px;
}
div#contents h2 {
    margin-top: 0;
    font-size: 16px;
    font-weight: bold;
}
div#contents h3 {
    margin-top: 40px;
    font-size: 16px;
    font-weight: bold;
}
@media only screen and (max-width: 640px) {
div#contents {
font-size:11px;
margin-bottom:50px;
  padding-left:2%;
  padding-right:2%;
}
div#contents h2 {
    margin-top: 0;
    font-size: 13px;
    font-weight: bold;
margin-bottom:20px;
}
div#contents h3 {
    margin-top: 40px;
    font-size: 13px;
    font-weight: bold;
  }
}