.campo {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 10px;
color: #333333;
border: 1px solid #006633;
background-color: #FAFAFA;
position: center;
}
.campo_alerta
{
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 10px;
color: #333333;
border: 1px solid red;
background-color: #FAFAFA;
position: center;
}