/*nav cv*/
nav li:nth-child(5) a {
    color: #64bee6;
    background-color: #525251;
}

nav li ul li:nth-child(5) a {
    color: white;
    background-color: #878787;
    border: solid 1px white;
    border-radius: 10px;
}

nav li ul li:nth-child(5) a:hover {
    color: #64bee6;
    background-color: #525251;
}
/*fin nav cv*/

/*Ma section*/

.grostitre {
    margin: 0 auto;
    text-align: center;
    letter-spacing: 0.05em;
}

.cadrepresentation {
    background-color: white;
    height: 100%;
    display: block;
    position: relative;
    margin-top: 3%
}

#presentation {
    box-shadow: -2px 3px 10px 2px rgba(0, 0, 0, 0.2), -5px 10px 30px rgba(255, 255, 255, 0.8) inset; 
    border: 2px solid white;
    background-color: #ebebeb;
    border-radius: 20px;
    overflow: hidden;
    padding: 4%;
}

#presentation img {
    position: relative;
    width: 100%;
}
/*fin de ma section*/
@media screen and (max-width: 580px) {
    #presentation img {
        position: relative;
        width: 100%;
    }
    #presentation div {
        position: relative;
        left: 0%;
        width: 100%;
    }
    footer div {
        float: left;
        width: 100%;
        margin: 0% 1% 0% 1%;
        text-align: center;
    }
}