.txtContenuti {
    position: relative;
    width:70%;
    left: 15%;
    height: auto;
    margin-top: 20px;
    text-align: center;
}

.txtContenuti p {
    font-weight: 300;
    font-size: 20px;
    color: #4A4A4A;
    letter-spacing: 0;
    text-align: center;
    line-height: 35px;
}