body
{
    background-image: url('img_superior/billetes.jpg');
    text-align: center; 
}
   
img
{
    border-width: 0px;
}

table
{
    border-collapse: collapse;
    border-spacing: 0;
    margin-left: auto;
    margin-right: auto;
}

td
{
    padding: 0;
    border: none;
    text-align: center;
}