.hidden {
    display: none;
}

li {
    list-style: none;
}

li img {
    width: 100%;
    padding: 0px;
    margin: 0px;
}

ul {
    padding: 0px;
    margin: 0px;
}

body {
    padding: 0px;
    margin: 0px;
}

.divBoutons {
    width: 100%;
    position: fixed;
    top: 50%;
}

#boutonDroite {
    float: right;
    margin-right: 10px;
}

#boutonGauche {
    float: left;
    margin-left: 10px;
}