.wch-a11y-highlight {
  outline: 3px solid #d32f2f;
  outline-offset: 4px;
  position: relative;
}

.wch-a11y-highlight::after {
  content: attr(data-a11y-issue);
  position: absolute;
  top: -1.8em;
  left: 0;
  background: #d32f2f;
  color: #fff;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 3px;
  white-space: nowrap;
  z-index: 999999;
}