@media only screen and (max-width : 767px) {
    .navbar {
        background-color: #000;
        padding-top: 15px;
        padding-bottom: 15px;
    }
    .navbar-light .navbar-toggler {
        background: #fff;
    }
    .navbar-light .navbar-nav .nav-link {
        padding: 10px 0;
        text-align: center;
    }
    .hero-slider.owl-carousel .owl-nav button.owl-prev {
        left: 15px;
        top: auto;
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 15px;
        bottom: 0;
    }
    .hero-slider.owl-carousel .owl-nav button.owl-next {
        right: 15px;
        top: auto;
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 15px;
        bottom: 0;
    }
    .hero-slider .slider-item h1 {
        font-size: 30px;
    }
    .hero-slider .slider-item p {
        font-size: 18px;
    }
    .hero-slider .slider-item .slider-btn {
        padding: 15px 25px;
        font-size: 13px;
    }
    .ptb-100 {
        padding-top: 50px;
        padding-bottom: 50px;
    }
    .pb-70 {
        padding-bottom: 20px;
    }
    .pt-100 {
        padding-top: 50px;
    }
    .section-title h2 {
        font-size: 25px;
    }
    .section-title {
        margin: 0 auto 30px;
    }
    .profile-img {
        margin-bottom: 15px;
    }
    .default-btn {
        padding: 15px 30px;
        font-size: 13px;
    }
    .footer {
        text-align: center;
    }
    .footer ul {
        text-align: center;
    }
    #image-viewer .close {

    top: 110px;
    right: 50px;
    z-index: 99999;
    
     }
}

@media only screen and (min-width : 576px) and (max-width : 767px) {
    .profile-img {
        text-align: center;
    }
    .intro-text {
        text-align: center;
    }
    #image-viewer .close {

    top: 110px;
    right: 50px;
    z-index: 99999;
    
     }
}
    
@media only screen and (min-width : 768px) and (max-width : 991px) {
  #image-viewer .close {

    top: 110px;
    right: 50px;
    z-index: 99999;
    
     }
}

@media only screen and (min-width : 992px) and (max-width : 1199px) {
 #image-viewer .close {

    top: 110px;
    right: 50px;
    z-index: 99999;
    
     }
}