fieldset {
  margin: 0 2px;
  /* Apply borders and padding that keep the vertical rhythm. */
  border-color: #c0c0c0;
  border-top-style: solid;
  border-top-width: 0.0625em;
  padding-top: 0.4625em;
  border-bottom-style: solid;
  border-bottom-width: 0.0625em;
  padding-bottom: 0.9125em;
  border-left-style: solid;
  border-left-width: 0.0625em;
  padding-left: 0.9125em;
  border-right-style: solid;
  border-right-width: 0.0625em;
  padding-right: 0.9125em;
}