/* 针对宽度小于或等于768像素的屏幕 */
@media (max-width: 768px) {
    .carousel-inner,.carousel-inner-img
    {
        min-height:unset;
    }
    .banner-sub .carousel-inner-img
    {
        height: 400px !important;
        min-height:unset !important;
    }
    .banner-txt  .banner-title
    {
        font-size: 20pt;
        padding-bottom: 24px;
        padding-left: 26px;
        padding-right: 26px;
        padding-top: 24px;
    }

    .navbar-brand > img
    {
        height: 80px;
        width: auto;
    }

}
@media (min-width: 750px) and (max-width: 980px) {
    .navbar-header{

    }
}

/* 针对宽度在480像素到768像素之间的屏幕 */
@media (min-width: 480px) and (max-width: 768px) {

}

/* 针对宽度小于480像素的屏幕 */
@media (max-width: 480px) {

}