#opacity {
  background: 0.5;
  background: 0.5;
  background: rgba(242, 133, 0, 0.7);
  background: rgba(242, 133, 0, 0.7);
  background: rgba(242, 133, 0, 0.5);
  background: rgba(242, 133, 0, 0.5); }
