.wishlist-btn .wishlist-count {
    position: absolute;       /* floats over the button */
    top: -6px;                /* adjust vertical position */
    right: -6px;              /* adjust horizontal position */
    background-color: red;    /* badge color */
    color: white;             /* text color */
    font-size: 12px;          /* number size */
    width: 18px;              /* badge width */
    height: 18px;             /* badge height */
    text-align: center;       /* center number */
    border-radius: 50%;       /* makes it a circle */
    line-height: 18px;        /* centers the number vertically */
    font-weight: bold;
    z-index: 20;              /* stay on top of button */
}