h1{
    color: aliceblue;
}
h1:hover{
    color: red;
}
body{
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to right, rgba(0, 255, 47, 0.597), rgba(255, 0, 0, 0.641));
    text-align: center;
}
.sopra{
    padding: 15px;
    text-align: center;
    font-size: 25px;
    width: 75px;
    height: 75px;
    border-radius: 10%;
    margin-top: 10%;
    margin-left: 2px;
    margin-right: 2px;
    border-color: white;
}
button:active{
    font-size: 20px;
    border-color: red;
}
.medio{
    padding: 15px;
    text-align: center;
    font-size: 25px;
    width: 75px;
    height: 75px;
    border-radius: 10%;
    margin: 2px;
    border-color: white;
}

.sotto{
    padding: 15px;
    text-align: center;
    font-size: 25px;
    width: 75px;
    height: 75px;
    border-radius: 10%;
    margin: 2px;
    border-color: white;
}
.alt{
    padding: 15px;
    text-align: center;
    font-size: 25px;
    width: 75px;
    height: 75px;
    border-radius: 10%;
    margin: 2px;
    border-color: white;
}
.space{
    padding: 15px;
    text-align: center;
    font-size: 25px;
    width: 250px;
    height: 75px;
    border-radius: 5%;
    margin: 2px;
    border-color: white;
}
button:hover{
    color: rgb(255, 0, 0);
    border-radius: 15%;
}