.logo a img {
    max-width: 180px;
}

.video-payer {
    z-index: 1;
}

@media (max-width: 575.99px) {
    .logo a img {
        max-width: 150px;
    }
}

.course-review-head .review-author-thumb {
    width: 80px;
    height: 80px;
    flex: 0 0 auto;
}

.video_qna_list_item .img img,
.review-author-thumb img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
}

.document-preview-area .pdf_viewer_box {
    background: gray;
    padding: 30px;
    padding-bottom: 30px;
    padding-bottom: 0px;
    display: flex;
    flex-flow: column;
    align-items: center;
}