@media (max-width: 600px)  {
    #choice-game {
        width: 95%;
    }

    #choice-game a {
        width: 96%;
        margin: 2%;
    }

    #content {
        width: 98%;
    }

    #content h3 {
        margin: 5px 0;
    }
}

@media (min-width: 601px) {
    #choice-game {
        width: 80%;
    }

    #choice-game a {
        width: 22.5%;
        margin: 1%;
    }

    #content {
        width: 80%;
    }
}

.nb-player{
    width: 23%;
    margin: 1%;
    font-weight: bold;
}

#choice-game {
    text-align: center;
}

#choice-game a {
    font-weight: bold;
}

#rules .collapsible-body {
    text-align: justify;
}

#options-check-boxes {
    margin: 0;
}