.copy-to-clip-board{position:relative;cursor:pointer}.copy-to-clip-board::after{content:attr(data-tooltip);position:absolute;background-color:#333;color:#fff;padding:5px 10px;margin-top:10px;border-radius:5px;top:100%;left:50%;transform:translateX(-50%);white-space:nowrap;opacity:0;visibility:hidden;transition:opacity 0.3s ease}.copy-to-clip-board:hover::after{opacity:1;visibility:visible}