body{
    font-family:verdana;
}

#description{
    background:linear-gradient(to bottom, #242B7B, #48247B, #74247B);
    width:800px;
    margin:auto;
    color:rgb(237, 245, 243);
    border-radius:20px;
    padding:20px;
    font-size:1.2em;
}

#description h2, #description p{
    margin:0px;
}

#conteneur{
    margin:auto;
    margin-top:20px;
    width:800px;
    padding:20px;
    background-color:#f0f1ff;
    border-radius:20px;
    justify-content: center;
    position:relative;
    display:flex;
    align-items:start;
    height:500px;
}

[id^="image"]{
    position:absolute;
    border:black 3px solid;
    border-radius:10px;
    display:none;
}

#bouton{
    background-color:crimson;
    color:white;
    font-weight:bold;
    text-align:center;
    border:black 3px solid;
    border-radius:10px;
    padding:10px;

}

#bouton:active{
    color:crimson;
    background-color:white;
}