input.btn
{
 cursor:default;
 color:#050;
 font-family:Arial;
 font-size:84%;
 font-weight:bold;
 background-color:#fed;
 border: 4px solid;
 border-top-color: olive; border-bottom-color:silver;
 border-left-color:olive; border-right-color: silver;
}

input.btnhov
{
 cursor:pointer;
   border-top-color: green; border-bottom-color:gold;
   border-left-color:green; border-right-color: gold;
}