.ccg-image-gallery a {
    position: relative;
    display: inline-block;
}

.ccg-image-gallery a::after {
    content: "\f35d"; /* FA Pro: arrow-up-right-from-square */
    font-family: "Font Awesome 7 Pro";
    font-weight: 900; /* solid */
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    font-size: 1.5rem;
    color: white;
    text-shadow: 0 0 4px rgba(0,0,0,0.7);
    pointer-events: none;
}