#Arrière-plan
{
    position:fixed;
    top:0;
    left:0;
    height:auto;
    width:100vw;
    z-index:-1;
}
body
{
    margin:0;
    background-color:black;
}
#menu
{
    display:absolute;
    background-color:silver;
    width:auto;
    margin:0;
}
#menu li, #menu a
{
    display:inline;
    font-size:150%;
    text-decoration:none;
    margin-left:.4%;
    margin-right:.4%;
}
#menu a:hover
{
    color:red;
}
article
{
    position:absolute;
    background-color:rgba(255,255,255,0.97);
}
footer
{
    position:fixed;
    bottom:0;
    left:0;
    color:lime;
    font-size:150%;
    font-weight:bold;
}
footer p
{
    margin:0;
}
footer a
{
    color:lime;
}