bookstack/resources/sass/_footer.scss

/**
 * Includes the footer links.
 */

 footer {
    flex-shrink: 0;
    padding: 1rem 1rem 2rem 1rem;
    text-align: center;
  }
  
  footer a {
    margin: 0 .5em;
  }
  
  body.flexbox footer {
    display: none;
  }