*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    background-color: rgb(0, 0, 0);
    color: rgb(160, 255, 160);
    font-size: 140%;
    padding: 40px;
}
footer {
    color: rgba(128, 128, 128, 0.6);
    text-align: right;
    position: fixed;
    bottom: 2px;
    right: 2px;
    font-size: 18px;
}
main{
    width: 96%;
    max-width: 1200px;
    margin: 0 auto;
}
#chi-sono{
    margin-bottom: 100px;
}
.banner{
    text-align: center;
    width: 100%;
}
.banner img{
    border: #000 solid 2px;
    border-radius: 20px;
    width: 100%;
    margin: 50px 0 10px 0;
    transition: 500ms;
}
.chi-sono-txt{
    display: flex;
    flex-direction: row;
    align-items: center;
}
.chi-sono-img{
    width: 150px;
    height: 150px;
}
p{
    font-size: 22px;
}
a{
    color: rgb(0, 200, 0);
}
button{
    background-color: rgb(0, 255, 0);
    cursor: pointer;
    border: 1px, solid, #333;
    border-radius: 20px;
    padding: 5px;
}
#descrizione-sito button{
    background-color: rgba(0, 255, 0, 0.1);
    color: #0f0;
    border: none;
    margin: 10px 5px;
    padding: 10px 20px 10px 20px;
    border-radius: 10px;
    transition: 0.3s;
}
#descrizione-sito button:hover{
    background-color: rgba(0, 255, 0, 0.2);
}
.titolo-argomenti{
    color: rgb(0, 255, 0);
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
    font-size: 30px;
    margin-bottom: 20px;
}
.argomenti{
    font-size: 20px;
}

/* Ridimensionamenti */
@media only screen and (max-width: 550px) {
    #chi-sono{
        margin-bottom: 50px;
    }
    .banner img{
        border-radius: 10px;
    }
    .chi-sono-img{
        display: none;
    }
    .titolo-argomenti{
        font-size: 25px;
    }
    .argomenti{
        font-size: 15px;
    }
    footer{
        font-size: 10px;
    }
}
@media only screen and (max-width: 450px) {
    .titolo-argomenti{
        font-size: 15px;
    }
    .argomenti{
        font-size: 10px;
    }
    footer{
        font-size: 8px;
    }
}