@namespace url(http://www.w3.org/1999/xhtml);

.tooltip {
  border: 1px solid WindowFrame;
  background: InfoBackground;
  color: InfoText;
  box-shadow: 0.8ex 0.8ex 0.5ex rgba(0, 0, 0, 0.5);
  padding: 0.5ex;
  overflow: hidden;
  white-space: normal;
}