.msg_invalido
{
    font-family:    Arial, Helvetica, sans-serif
    font-size:      40px;
    color:    red;
}
.div_text
{
    font-family:    Arial, Helvetica, sans-serif;
    font-size:      15px;
    font-weight:    bold;
}
input:read-only {
  background-color: #ccc;
}