.disclaimer {
  color:black;
  border: 1px solid red;
  background: #ffeeee;
  margin: 0.5em 2em;
  padding: 0.5em 1em;
}

.disclaimer:after {
  content: "Note: My deadpan sense of humor has confounded readers unable to distinguish honestly meant rants from subtle japes. If the following rant upsets you or makes you scratch your head in bewilderment, please take a moment to consider that it might in fact be a jest. Thank you.";
}