div {
  /* with a content block */
  name: foo;
  stuff: content for foo;
  name: bar;
  stuff: content for bar;
  stuff: content for foo;
  /* without */
  name: foo;
  name: bar;
  stuff: content for bar;
}

span {
  color: green;
}
span div {
  color: red;
  background: blue;
  width: 80%;
}
@media fudge {
  span div p {
    font-weight: bold;
    font-size: 1.2em;
  }
  span div p a {
    text-decoration: underline;
  }
}
span div form {
  color: orange;
}
@media fudge {
  span div form p {
    font-weight: bold;
    font-size: 1.2em;
  }
  span div form p a {
    text-decoration: underline;
  }
}

* html #logo {
  background-image: url(/logo.gif);
}