body{
background-color: black;
}

a{
    float: left; 
    color: black;
    text-align: center;
    padding: 14px 16px;
    color: white;
    position: relative;
    top: 550px;
    left:29%;
}
    
.navigation {
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;

}
#oiseau{
    margin: 0 520px;
    width: 300px;
    height: 500px;
}
#R112{
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    
}
#R212{
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    justify-content: center;
    align-items: center;
}