div {
  background-image: url(foo.png);
  background-position: 50%;
}

span {
  background-image: url(bar.png);
  background-position: 100%;
}

p {
  border-upper-left: 2px;
  border-upper-right: 3px;
}

/* 2 + 3 */
/* 5 */
foo|div {
  color: red;
}

div sp\ , #abcan {
  color: red;
}
div sp\  p, div sp\  |q, #abcan p, #abcan |q {
  background: blue;
  color: \hey;
  width: \10 \20 \ ;
}
div sp\  p a, div sp\  |q a, #abcan p a, #abcan |q a {
  height: 1;
}

d\ v a, sp\ n a {
  color: blue;
}