body {
    margin:0;
    background-color: black;
    color: white;
    font-family: "Open sans", "Arial", sans-serif;
}

.container {
    background-color: white;
    border: 1px solid black;    /*Utile surtout s'il y a un container dans un autre*/
    padding: 1em;
    margin: 1em;
    border-radius: 0.2em;
    overflow: auto;
    color: black;
}

h2 {
    border-bottom: 1px solid black;
}

a {
    text-decoration: none;
    color: unset;
}