p.caption {
  color: #777;
  margin-top: 10px;
}
p code {
  white-space: inherit;
}
pre {
  word-break: normal;
  word-wrap: normal;
}
pre code {
  white-space: inherit;
}
div.green {
  background-color: #ecffeb; 
  border-radius: 5px; 
  padding: 20px;
}
div.gray {
  background-color: #e8e8e8; 
  border-radius: 5px; 
  padding: 20px;
}