.black-overlay-post-grid .df-post-thumbnail::before{opacity:0;transition:opacity 0.3s ease}.black-overlay-post-grid .df-post-thumbnail:hover::before{opacity:1}.black-overlay-post-grid .df-post-thumbnail{position:relative;overflow:hidden}.black-overlay-post-grid .df-post-thumbnail::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.5);z-index:1;pointer-events:none}.black-overlay-post-grid .df-post-thumbnail *{position:relative;z-index:2}