.course-video {
    width: 100%;             /* Parent container ke hisaab se auto-fit hoga */
    max-width: 700px;        /* Video isse badi nahi hogi */
    height: auto;            /* Aspect ratio kharab nahi hoga */
    border-radius: 10px;     /* Rounded corners ke liye */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); /* Halka shadow effect */
    display: block;
    margin: 15px 0;          /* Uper-neeche halka gap */
}