@media only screen and (min-width:768px) {
    body{
        width: 100%;
    }
    .GrandeDiv{
        margin-top: 10%;
        /* width : 100%; */
        margin-left: 25%;
        margin-right: 25%;
    }
    
    nav#Summary a{
        text-decoration: none;
        color: black;
        font-size: 16px;
    }

    
}


@media only screen and (max-width:768px){

    body{
        max-width: 768px;
    }
    nav#Summary a{
        text-decoration: none;
        color: black;
        font-size: 12px;
    }
    
    .GrandeDiv{
    max-width: 618px;
    margin-left: 75px;
    margin-right: 75px;
    }
}


.GrandeDiv{
    top: 10%;
    text-align: justify; 
}

.FirstPart h2{
    text-align: center;
    color: rgb(88, 167, 212);
}

.GrandeDiv h1{
    text-align: center;
    color: #ff232b;
}

nav#Summary {
    position:fixed;
    top: 10%;
    right: 0;
    background-color: rgb(207, 204, 204);
    width: 400px; 
}

nav#Summary li{
    list-style-type: none;
    text-align: center;
    margin-left: 18px; 
    margin-right: 18px;
}


#Summary {
    transition: opacity 0.5s;
}

.hidden {
    opacity: 0;
    z-index: -1;
}

#toggle-Summary {
    position:fixed;
    right: 0;
    top: 8.5%;
}