@media only screen and (max-width: 991px) {
    #navbar .link {
        margin-left: 100px;
    }

    .header span {
        margin-top: 200px;
    }

    .page {
        display: block;
        width: 100%;
    }

    .page_box {
        width: 100%;
    }

    .page_box:nth-child(2) {
        background-position: center;
    }

    .page {
        height: auto;
    }

    .page_box {
        height: auto;
    }

    .page_box2 {
        height: auto;
        padding: 80px 50px;
    }

    .service_div {
        display: block;
        height: auto;
    }

    .service_box {
        width: 100%;
        height: auto;
    }

    .service_box2 {
        height: auto;
        padding: 4% 2%;
    }

    .before {
        height: auto;
        padding: 2%;
    }
}

@media only screen and (max-width: 768px) {
    #menu-btn {
        display: inline-block;
    }

    #navbar .link {
        margin-left: 0px;
        position: absolute;
        top: -1100%;
        left: 0%;
        width: 100%;
        height: 80vh;
        background: rgba(0, 0, 0, 0.7);
        padding: 1rem;
        transition: 1s;
        overflow: hidden;
        z-index: 99999;
    }

    #navbar .link a {
        display: block;
        padding: 1.5rem;
        margin: 1rem;
        font-size: 20px;
        text-align: center;
        z-index: 9999;
    }

    #navbar .icon ion-icon {
        padding: 20px 10px;
        font-size: 30px;
    }

    .header ion-icon {
        z-index: -1;
    }

    .page {
        height: auto;
    }

    .page_box {
        height: auto;
    }

    .page_box2 {
        height: auto;
        padding: 80px 50px;
    }

    .service ul li {
        padding: 10px;
        font-size: 17px;
        color: var(--text-color);
        font-weight: 300;
        letter-spacing: 2px;
    }

    .service ul li ion-icon {
        padding: 10px;
        font-size: 50px;
    }

    .content p {
        font-size: 20px;
        padding: 20px;
    }
}

@media only screen and (max-width: 591px) {
    #navbar .icon ion-icon {
        padding: 20px 10px;
        font-size: 20px;
    }

    #navbar .link a {
        display: block;
        padding: 1rem;
        margin: .5rem;
        font-size: 17px;
        text-align: center;
        z-index: 99999;
    }

    .header span {
        margin-top: 100px;
    }

    .header ion-icon {
        z-index: -1;
    }

    .header h1 {
        font-size: 50px;
        padding: 20px 60px;
        line-height: 70px;
    }

    .header h2 {
        padding: 0px 60px;
        line-height: 25px;
    }

    .before {
        border: 5px solid white;
        padding: 20px;
    }

    .before p {
        padding: 20px;
        font-size: 14px;
    }

    .before h1 {
        font-size: 50px;
    }

    .service_box1 {
        height: 300px;
    }
}