.trasparente { 
font-family: "Courier New", Courier, monospace;
text-justify: newspaper; 
    width: 100%; 
    height: auto; 
    border: 1px solid black; 
    margin-left: auto; 
    margin-right: auto; 
    margin-top: 5px;
    background-color: #214567;
    filter:alpha(opacity=90); 
    opacity: 0.1;
    -moz-opacity:0.9;
    font-size: 12px;
}