p.readmore a,
.com-content-category-blog__item .readmore a {
    background-color: #339933 !important; /* Your custom background color */
    color: #ffffff !important;            /* Your custom text color */
    border-color: #007bff !important;     /* Matches border to background */
    box-shadow: none !important;          /* Removes default Bootstrap shadow shifts if desired */
}