@media (max-width: 960px) {
    header {
        height: 70px;
    }

    #center_home {
        min-width: 0;
        margin-top: 0;
        top: 0;
        height: auto;
        display: block;
    }

    .home_section {
        flex-direction: column;
        margin-top: 7vh;
        min-width: 0;
        min-height: 0;
        height: auto;
        width: 100%;
    }

    .home_call_office {
        margin-top: 15vh;
    }

    #small_home {
        font-size: 16px;
    }

    #big_home {
        font-size: 30px;
    }

    #group_message_phone {
        padding-bottom: 8vh;
    }

    #image_office img {
        width: 75%;
        height: auto;
        display: block;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 20%;
    }

    #home_message {
        margin-top: 0;
    }
}