body {
    font-family: sans-serif;
}

.retour {
    width: 100px;
    text-align: center;
    padding: 10px;
    border-radius: 5px;
    background-color: rgb(0, 140, 140);
}

a {
    text-decoration: none;
    color: white;
    font-weight: 600;
    width: 100%;
    height: 100%;
}

.bouton_retour {
    background-color: aqua;
}

.option {}

h1 {
    color: rgb(0, 140, 140);
    font-size: 1.8em;
}

h2,
h3 {
    color: rgb(0, 140, 140);
}

section {
    display: inline-block;
    vertical-align: top;
}

#graph {
    margin-left: 310px;
    border-left: solid 2px black;
    padding: 0px 20px 0px 20px;
}

#graph img {
    max-width: 1000px;
}

#buttons {
    padding: 0px 20px 0px 20px;
    margin-right: 10px;
    position: fixed;
    height: 90vh;
    overflow: scroll;
}

#buttons ul {
    list-style: none;
    display: none;
}

.menu_deroul img {
    border: solid 1px black;
    width: 16px;
}

.menu_deroul {
    font-size: 12px;
    margin-left: 25px;
}

#bothGraph,
#selfGraph,
#otherGraph,
#single_other,
#single_self,
#single_both {
    display: none;
}