/*Reset CSS*/
*{
    margin: 0px;
    padding: 0px;
    font-family: Noto Serif, serif;

}

nav{
    width: 70%;
    margin: 2;
    background-color: hsl(0, 100%, 100%);
    position: relative;
    top: 5px;

}

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

nav ul li{
    float: left;
    width: 90%;
    text-align: center;
    


}

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;
}


nav > ul li:hover .sous{
    display: block;
}
.sous{
    display: none;
    box-shadow: 0px 1px 2px #CCC;
    background-color:  hsl(0, 0%, 96%);
    position: center;
    width: 90%;
    z-index: 100;
}
.sous li{
    float: none;
    width: 90%;
    text-align: left;
}
.sous a{
    padding: 0px;
    border-bottom: none;
font-size:16px;
}
.sous a:hover{
    border-bottom: none;
    background-color: hsl(104, 0%, 89%);
width: 100%;
}
.deroulant > a::after{
    content:" Sommaire ▼";
    font-size: 100%;
}