.highlight{position:relative}.btn-copy{position:absolute;top:6px;right:6px;display:flex;justify-content:center;align-items:center;width:32px;height:24px;cursor:pointer;border-radius:6px;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-appearance:none;color:grey;-webkit-transition:opacity .3s ease-in-out;-o-transition:opacity .3s ease-in-out;transition:opacity .3s ease-in-out;opacity:0}.btn-copy:hover{color:#000}.highlight:hover .btn-copy{opacity:1}