body{
    background-color: aqua;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
.shape{
    position: fixed;
    bottom: 0;
    transform: translateY(-50%);
}
#square{
    width: 400px;
    height: 400px;
    background-color: red;
    left: 30%;

}
#circle {
    width: 400px;
    height: 400px;
    background-color: blue;
    left: 43%;
    border-radius: 50%;
}

#triangle{
    width: 0;
    height: 0;
    border-left: 200px solid transparent;
    border-right: 200px solid transparent;

    border-bottom: 400px solid green;
    left: 52%;
}
.fleche{
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: grid;
    grid-template-rows: repeat(2, 100px) ;
    width: 100px;
    height: 200px;
}
.fleche>*{
    background-color: brown;
}
#fleche_bas {
    background-color: blueviolet !important;
}

.content{
    display: none;
}

.fiche{
    width: 200px;
    height: 800px;
    background-color: white;
    position: absolute;
    left: 20px;
    top: 20px;
}