_highlightjs_copy.css

.hljs-copy-wrapper {
    position: relative;
    overflow: hidden;
  }
  .hljs-copy-wrapper:hover .hljs-copy-button,
  .hljs-copy-button:focus {
    transform: translateX(0);
  }
  .hljs-copy-button {
    position: absolute;
    /* transform: translateX(calc(100% + 1.125em)); */
    top: 1em;
    right: 1em;
    width: 2rem;
    height: 2rem;
    text-indent: -9999px; /* Hide the inner text */
    color: #fff;
    border-radius: 0.25rem;
    border: 1px solid #ffffff22;
    background-color: #2d2b57;
    background-color: var(--hljs-theme-background);
    background-image: url('data:image/svg+xml;utf-8,<svg width="16" height="16" viewBox="0 0 24 24" fill="none" xmlns="http:https://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M6 5C5.73478 5 5.48043 5.10536 5.29289 5.29289C5.10536 5.48043 5 5.73478 5 6V20C5 20.2652 5.10536 20.5196 5.29289 20.7071C5.48043 20.8946 5.73478 21 6 21H18C18.2652 21 18.5196 20.8946 18.7071 20.7071C18.8946 20.5196 19 20.2652 19 20V6C19 5.73478 18.8946 5.48043 18.7071 5.29289C18.5196 5.10536 18.2652 5 18 5H16C15.4477 5 15 4.55228 15 4C15 3.44772 15.4477 3 16 3H18C18.7956 3 19.5587 3.31607 20.1213 3.87868C20.6839 4.44129 21 5.20435 21 6V20C21 20.7957 20.6839 21.5587 20.1213 22.1213C19.5587 22.6839 18.7957 23 18 23H6C5.20435 23 4.44129 22.6839 3.87868 22.1213C3.31607 21.5587 3 20.7957 3 20V6C3 5.20435 3.31607 4.44129 3.87868 3.87868C4.44129 3.31607 5.20435 3 6 3H8C8.55228 3 9 3.44772 9 4C9 4.55228 8.55228 5 8 5H6Z" fill="white"/><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3C7 1.89543 7.89543 1 9 1H15C16.1046 1 17 1.89543 17 3V5C17 6.10457 16.1046 7 15 7H9C7.89543 7 7 6.10457 7 5V3ZM15 3H9V5H15V3Z" fill="white"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
    transition: background-color 200ms ease, transform 200ms ease-out;
  }
  .hljs-copy-button:hover {
    border-color: #ffffff44;
  }
  .hljs-copy-button:active {
    border-color: #ffffff66;
  }
  .hljs-copy-button[data-copied="true"] {
    text-indent: 0px; /* Shows the inner text */
    width: auto;
    background-image: none;
  }
  @media (prefers-reduced-motion) {
    .hljs-copy-button {
      transition: none;
    }
  }
  
  /* visually-hidden */
  .hljs-copy-alert {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
  }