.site {
  width: 45em;
}

#content.site {
  width: 44em;
}

#user_input, #html_result {
  width: 580px;
  height: 170px;
}

#result {
  width: 560px;
  min-height: 150px;
  border: 1px solid #999;
  margin-top: 15px;
  padding: 10px;
}