section {
    background-color: rgba(130, 0, 0, 0.75);
    border-radius: 10px;
}
p {
    margin: 20px;
    color: white;
}
a:hover {
    background-color: brown;
    color: black;
}
.gauche {
    flex: 1;
    background-color: green;
    border-radius: 10px;
    margin: 15px;
}
.droite {
    flex: 5;
    margin: 15px;
}
h1,h3,h4,h5,li,ol,ul,p,a {
    color: white;
}
div {
    margin: 10px;
}