#main_section
{
    width:95%;
    max-width:800px;
    margin:150px auto;
    text-align:center;
}
#not_found
{
    margin:50px 0px 0px 25px;
}
#message_div
{
    margin-top:15px;
}
#not_found img
{
    width:100%;
    max-width:600px;
}
#accueil a
{
    display:inline-block;
    font-size:3rem;
    text-decoration: none;
    background:#ee4619;
    color:white;
    padding:8px 30px;
    margin:25px 0px 150px 0px;
    border-radius:5px;
}