body
{
background-color:black;
margin-top:0px;
font-family:Calibri, Verdana, Trebuchet MS;
font-style:italic;
color:white;
}

a {

text-shadow: 2px 0px 2px #000000, 2px 3px 2px #000000;
color: white;
}

a:visited {
color: white;
text-shadow: 2px 0px 2px #000000, 2px 3px 2px #000000;
}

a:hover {
text-decoration:none;
font-weight:bold;
color:red;
text-shadow: 2px 0px 2px #000000, 2px 3px 2px #000000;

}
#contenu
{
border-radius:50px;
width:1024px;
height:768px;
margin-left:auto;
margin-right:auto;
margin-top:40px;
border: 3px solid white;

background: rgba(135,206,250, 0.5);
}

#pena
{
display:block;
border: 5px solid white;
margin-left:auto;
margin-right:auto;
margin-top:75px;

}

.retour
{
font-size:22px;
font-weight:bold;
color:white;
text-align:center;
margin-top: 18px;
}