body{
background-color: #FBDA61;
background-image: linear-gradient(45deg, #FBDA61 0%, #FF5ACD 100%);
}
nav{
    width: 100%;
    margin: 0 auto;
    background-color: rgb(255, 255, 255);
    position: sticky;
    top: 0px;
}

nav ul{
    list-style-type: none;
}

nav ul li{
    float: left;
    width: 25%;
    text-align: center;
    position: relative;
}

nav ul::after{
    content: "";
    display: table;
    clear: both;
}

nav a{
    display: block;
    text-decoration: none;
    color: black;
    border-bottom: 2px solid transparent;
    padding: 10px 0px;
}

nav a:hover{
    color: orange;
    border-bottom: 2px solid gold;
}

.sous{
    display: none;
    box-shadow: 0px 1px 2px white;
    background-color: white;
    position: absolute;
    width: 100%;
    z-index: 1000;
}
nav > ul li:hover .sous{
    display: block;
}
.sous li{
    float: none;
    width: 100%;
    text-align: right;
}
.sous a{
    padding: 10px;
    border-bottom: none;
}
.sous a:hover{
    border-bottom: none;
    background-color: RGBa(200,200,200,0.1);
}
.deroulant > a::after{
    content:" â–¼";
    font-size: 12px;
}

.conteneur{
  margin: 50px 20px;
  height: 1500px;
}

.Progression {
    padding-right: 15px;
    font-size: 25px;
}

.ALL{
    float : left;
}

.GIF{
    float : right;