@media screen and (min-width: 481px) {
    .box_item_gallery{
        width: 33.333%;
    }
}

@media screen and (min-width: 768px) {
    .box_item_gallery{
        width: 25%;
    }
}

@media screen and (min-width: 992px) {
    .box_item_gallery{
        width: 25%;
    }
}

@media screen and (min-width: 1200px) {
    .box_item_gallery{
        width: 20%;
    }

    .list_gallery{
        margin: 0 20px;
    }
}

@media screen and (max-width: 580px) {
    .btn_vr_control{
        display: block !important;
    }

    .btn_powered_by img{
        height: 20px;
    }
}