/* styles.css   An external stylesheet */

a       { text-decoration: none }

a:hover { text-decoration: underline;
color: red;
background-color: #ccffcc }

li em   { color: red;
font-weight: bold; 
background-color: #ffffff }

ul      { margin-left: 2cm }

ul ul   { text-decoration: underline;
margin-left: .5cm }