.copy-button{position:absolute;display:none;cursor:pointer;inset:5px 5px auto auto;width:1em;height:1em;border:1px solid;box-shadow:-3px 3px #999}:hover>.copy-button{display:inline-block}.copy-success{box-shadow:none;background-color:#999;transition:box-shadow .3s ease-out,background-color .3s ease-out}.copy-fail{border-style:dotted}