.syntax .add {
  color: green; }
.syntax .del {
  color: red; }
.syntax .insert {
  color: green;
  background-color: #cfc;
  display: block; }
.syntax .remove {
  color: red;
  background-color: #fcc;
  display: block; }
.syntax .offset {
  color: blue;
  background-color: #ccf;
  display: block; }
