body { color: black; font-family: Helvetica, sans-serif }
body.cero { background: #f0f0f0;}
body.uno { background: #fff0f0;}
body.dos { background: #f0fff0;}
body.tres { background: #f0f0ff;}

table  {
    border-collapse: collapse; 
    border-style: hidden;
}

table.uno  {
    background: #fff0f0
}

table.dos  {
    background: #f0fff0
}

table.tres  {
    background: #f0f0ff
}

table.rayada tr { 
    border-style: solid thin;
    padding: 0.2em;
    }

table.rayada th { 
    border-style: solid;
    border-width: thin;
    vertical-align: top;
    text-align: left;
    padding: 0.2em;
    right-padding: 0.5em;

}

table.rayada td {
    border-style: solid;
    border-width: thin;
    vertical-align: top;
    padding: 0.2em;
}

input { color: black; font-family: Monospace, monospace; font-size: 12 }
textarea { color: black; font-family: Monospace, monospace; font-size: 12 }
option { color: black; font-family: Monospace, monospace; font-size: 12 }
select { color: black; font-family: Monospace, monospace; font-size: 12 }