.video-box {
    width: 324px !important;
    max-width: 324px !important;
    padding: 0 !important;
    margin-left: 0 !important;
    margin-right: auto !important;
}

.video-box iframe {
    display: block !important;
    margin-left: 0 !important;
    margin-right: auto !important;
}