main {
    margin: 80px 0 0;
}

h1 {
    color: #d14c33;
}

.hexagon {
    display: inline-block;
    width: 40px;
    height: 35px;
    background-color: gray;
    position: relative;
    clip-path: polygon(
        25% 0%, 75% 0%,
        100% 50%, 75% 100%,
        25% 100%, 0% 50%
    );
}
.hexagon.green { background-color: #b3cc4e; }    /* Aménagement extérieur */
.hexagon.red { background-color: #d14c33; }      /* Enduit hydraulique */
.hexagon.gray { background-color: #666666; }     /* Rénovation */
.hexagon.orange { background-color: #e97d32; }   /* Pose de pavés */
.hexagon.dark { background-color: #333333; }     /* Façade pierre */

div.services {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px;
}

h2 {
    font-size: 1.5em;
    height: auto;
    line-height: 35px;
    vertical-align: top;
    margin: 0;
    padding: 0;
}
h2 strong {
    height: auto;
    line-height: 35px;
    vertical-align: top;
    margin: 0 3px;
    padding: 0;
    display: inline-block;
}

div.prestations {
    margin: 20px 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 30px 15px;
}
div.prestations div#amenagement-exterieur,
div.prestations div#renovation-facade-pierre {
    grid-column: span 3;  
}

@media screen and (max-width: 940px) {
    div.prestations {
        grid-template-columns: repeat(2, 1fr);
    }
    div.prestations div#amenagement-exterieur, div.prestations div#renovation-facade-pierre {
        grid-column: span 1;
    }
}
@media screen and (max-width: 680px) {
    div.prestations {
        display: block;
    }
    div.prestations div.service {
        margin: 15px 0;
    }
    div.prestations div#amenagement-exterieur, div.prestations div#renovation-facade-pierre {
        grid-column: span 1;
    }
}
@media screen and (max-width: 480px) {
    div.services {
        padding: 20px;
    }
    h2 {
        text-align: center;
    }
    .hexagon {
        display: block;
        margin: 0 auto;
    }
}