icinga-php-library/asset/css/copy-to-clipboard.less

.clipboard-wrapper {
  position: relative;
  > .copy-to-clipboard {
    margin: 0.1em 0.1em 0 0;
    position: absolute;
    right: 0;
    top: 0;
  }

  &:hover {
    .copy-to-clipboard.active {
      opacity: 0.8;
    }
  }
}

.copy-to-clipboard {
  .appearance(none);
  border: none;
  opacity: 0;
  background: none;
  padding: 0.25em 0.5em;
  cursor: default;

  &.active {
    cursor: pointer;
    &:hover, &:focus {
      opacity: 0.8;
      color: var(--control-color, @control-color);
      outline-offset: -2px;
    }
  }
}

.copy-to-clipboard.active,
.clipboard-wrapper:hover .copy-to-clipboard.active {
  &.copied {
    opacity: 0;
    transition: opacity 1s linear 3s;
  }
}