.log {
  max-height: 300px;
  margin: 20px 0;
  border: 1px solid #000;
  overflow: auto;
}
.log p {
  font-size: 12px;
  margin: 0 0 5px 0;
}
code {
  font-size: 14px;
}
h2 {
  margin-top: 40px;
  padding-bottom: 10px;
  border-bottom: 1px solid gray;
}
code pre {
  border: 1px solid gray;
  background-color: #ececec;
  padding: 30px;
}