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 }