.ahem {display:none;}
body {color: black; background: white; font-family: Arial, san-Serif;}
H1 {color: black; font-family: Arial, sans-Serif; font-size: xx-large}
A:visited {color: purple;}
A:link {color: blue;}
A:active {color: yellow;}
ul {
   margin: 0;
   padding: 0;
   list-style: none;
   width: 150px;
   border-bottom: 1px solid #ccc 
   }

ul li {
      position : relative;
      }   

li ul {
      position: absolute;
      left: 149px;
      top: 0;
      display: none;
      }

ul li a {
      display: block;
      text-decoration: none;
      color: #777;
      background: #fff;
      padding: 5px;
      border: 1px solid #ccc;
      border-bottom: 0;
      }
      
/* Fix IE. Hide from IE Mac \*/
* html ul li { float: left; }
* html ul li a { height: 1%; }
/* End */

li:hover ul, li.over ul { display: block; }