div {
  content: false;
  content: true;
  content: var 1/2 3 4;
  content: lit 0.5 3 4;
  content: true;
  a: 3, 3;
  b: 0.5, 1/2;
  content: true;
  /***/
  content: 3;
  content: number;
  content: 1/2;
  content: 1/2;
  content: true;
  content: 1 2 3;
  color: true;
  color: true;
  color: true; }
