gistfile1.css

/* The CSS Rule*/
selector {
  property: value;
}

/* CSS ID selector */
/* <p id="footer">Copyright 2011</p> */
#footer {
  property: value;
}

/* CSS Class selector */
/* <p class="warning">Run away!</p> */
.warning {
  color: red;
}

/* CSS property examples */
p {
  color: red;
  color: #ff0000;
  color: rgb(255, 0, 0);
}

p {
  background-color: black;
  background-color: #000000;
  background-color: rgb(0,0,0);
}

p {
  font-family: "Times New Roman";
  font-family: serif;
  font-family: "Arial", sans-serif;
}

p {
  font-size: 12px;
  font-size: 1.5em;
  font-size: 100%;
}