div.opacity {
    color: black;
    font-weight: bolder;
    background-color: white;
    border: 4px inset rgb(87, 66, 49);
    opacity: 0.2;
    padding: 10px;
}

div.exc {
    color: whitesmoke;
    background-image: url(/img/f6d6b001.png);
    padding: 10px;
}

div.rgba {
    color: black;
    font-weight: bolder;
    background-color: rgba(255, 255, 255, 0.205);
    border: 4px inset rgb(87, 66, 49);
    padding: 10px;   
}

h4 {
    color: brown !important ;
    font-size: 24px; 
    margin-top: 1em !important;
}