.tip { border-bottom:1px dotted #000000; cursor:help; }
a.tip,
a.tip:link,
a.tip:visited,
a.tip:active { text-decoration: none; position: relative; color:yellow}
a.tip:hover { background: transparent; z-index: 100; }
a.tip span { display: none; text-decoration: none; }
a.tip:hover span { 
display: block;
position: absolute; 
top: 1px; 
left: 50; 
width: 200px;
z-index: 100; 
color: #FFFFFF; 
font-family: Helvetica, Geneva, Arial, SunSans-Regular, sans-serif; 
padding: 2px 10px; 
background-color: #014373; 
text-align: left; 
border-color: yellow; 
border-style: solid; 
border-width: 1px 4px; }