body, html{
    margin: 0px;
    padding: 0px;
    background-color: aqua;
    height: 100%;
}

header{
    height: 15%;
    display: flex;
    text-align: center;
    align-items: center;
    background-color: grey;
    box-shadow: 1px 1px 10px 1px black;
}

h1{
    width: 100%;
    padding: 0px;
    margin: 0px;
}

#logo{
    position: fixed;
    height: 80px;
}

#box-testo{
    padding: 20px;
    margin: 0px;
}

h2{
    margin: 0px;
}

ol{
    padding-left: 17px;
}

li{
    margin-bottom: 5px;
}

/* schermi piccoli */
@media screen and (max-width: 620px){
    #logo{
        margin-left: -2px;
    }
}