body {
    font-family: "Lucida Sans", sans-serif;
    font-size: 17px;
}

#tudo {
    /*position: absolute;
    left: 50%;
    margin-left: -450px;
    width: 900px;*/
}

#cabecalho {
    background-color: #001242;
    /*width: 890px;
    height: 90px;
    padding: 5px;*/
}

#corpo {
    width: 100%;
}

#rodape {
    /*width: 900px;*/
    height: 80px;
    background-color: #dffcff;
    clear: both;
}

#utilizador {
    background-color: darkseagreen;
    /*width: 890px;*/
    text-align: right;
    padding: 5px;
}

#menu {
    background-color:cornflowerblue;
    width: 150px;
    text-align: center;
    float: left;
}

.menuNome {
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
    font-size: large;
    margin: 10px;
    color: darkslateblue;
}

.menuItem {
    vertical-align: middle;
    margin: 3px;
}

.menuButton {
    font-size: 15px;
    Width: 120px;
    margin: 5px; 
    background-color: aliceblue;
}

#miolo {
    /*width: 740px;*/
    float: left;
    padding: 5px;
}

#Panel_Pesquisa{
    background-color: khaki
}

@media (max-width: 768px) {
    #cabecalho {
        background-color: #00ff00;        
    }
    #menu {
        width: 100%;
        /*float: none;
        background-color: darkseagreen;*/
    }

    .menuNome {
        float: left;
    }

    .menuItem {
        float: left;
    }

    .menuButton {
        font-size: 18px;
    }

    #miolo {
        float: none;
    }

}