body{
    background-image: url('img/fond.jpg') ;
    color: white;
    margin: 0;
    padding: 0;
}

header{
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 50px;
}

#titre{
    height: 80px;
    width: 700px;
    transition: transform .4s;
}

.planetes{
    height: 200px;
    width: 250px;
    margin-top: 50px;
    margin-left: 40px;
    margin-right: 40px;
    transition: transform .4s;
}

.planetes:hover, .uranus:hover, .saturne:hover, #titre:hover{
    transform: scale(1.25);
}

.uranus, .saturne{
    height: 200px;
    width: 250px;
    margin-top: 50px;
    margin-left: 40px;
    margin-right: 40px;
    transition: transform .4s;
}

#ligne1, #ligne2{
    display: flex;
    align-items: center;
    justify-content: center;
}

#po{
    height: 45px;
    width: 185px;
}

footer{
    margin-top: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}