body{
    font-family:Arial,Helvetica,Sans-serif;
    font-size:80%;
}
caption{
    padding-bottom:5px;
    font-weight:bold;
}
thead th,tfoot td{
    background:#ddd;
}
tr.ruled{
    background:#9cf;
}    
table{
    border:1px solid #000;
    border-collapse:collapse;
}
th,td{
    border:1px solid #000;
    border-collapse:collapse;
}
#mytable tr.ruled{
    background:#333;
    color:#ccc;
}