div.testo-pagina {
        margin-left: 15%;
        margin-right: 15%;
        font-family: "Trebuchet MS", "Lucida Grande", "Lucida Sans Unicode", sans-serif;
        font-size: 19px;
        line-height: 26px;
        padding-bottom: 100px
    }
    div.testo-pagina h3{
        color:#666;
        font-size: 27px;
        margin-bottom: 15px;
    }
    div.testo-pagina b, div.testo-pagina div b{
        font-weight: bold;
    }
    h1.matrix{
        margin-left:15% !important
    }    
    h4 {
        font-size: 23px
    }
    @media (max-width: 600px) {    
        div.testo-pagina {
            margin-left: 5%;
            margin-right: 5%;
            font-size: 18px;
            line-height: 20px;
        }
        h1.matrix{
            margin-left:5% !important
        }    
    }