.pie{
   font-family: tahoma, verdana, arial, sans-serif;
   font-size:12px;  
   padding: 1 10 1 10px;
   text-align: center;
}
.boton{
	 text-align: center;
	 background-image: url(a.png);
	 padding: 2 0 5 0px;
}
.enlaceboton{
   font-family: Times New Roman, Verdana, Arial, Helvetica, sans-serif;
   font-size: 12px;
   padding: 2 0 0 0px;
   font-weight: bold;
   color: #3C6289;
   text-decoration: none;
}
.enlaceboton:link,
.enlaceboton:visited {
   border-top: 0px solid #53778a;
   border-bottom: 0px solid #53778a;
   border-left: 0px solid #53778a;
   border-right: 0px solid #53778a;
}
.enlaceboton:hover {
	 padding: 2 0 0 0px;
	 font-weight: bold;
	 color: #000000;
	 text-decoration: underline;
}