.block-region {
  color: #3f3f3f;
}
details {
  margin-top: 1em;
  margin-bottom: 1em;
  border: 1px solid #ccc;
}
details > .details-wrapper {
  padding: 1em;
}
/* @todo Regression: The summary of uncollapsible details are no longer
     vertically aligned with the .details-wrapper in browsers without native
     details support. */
summary {
  margin-top: 0;
  margin-bottom: 0;
  padding: 10px 15px;
  border-bottom: 1px solid #ddd;
  font-size: 16px;
  background-color: #f5f5f5;
  cursor: pointer;
}
.captcha .details-description {
  margin: 5px 0 10px;
  padding: 0;
  color: #aaa;
  font-size: 12px;
}