@media screen and (max-width: 900px) {
    .decouvrir {
        width: 100%;
        padding: 50px;
    }

    .box {
        min-width: 100%;
    }

    .box-right {
        margin-left: 0;
    }

    .decouvrir > button {
        max-width: 450px;
        width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .contacter > .moyens {
        display: flex;
        flex-direction: column;
        justify-content: space-evenly;
    }

    .contacter > .moyens > button {
        max-width: 450px;
        width: 100%;
    }
  }