I'm only purple on the actual render website, not in the preview.
This file file serves as your book's preface, a great place to describe your book's content and ideas.
Here is some test edits.
I'm master branch..
Download PDF
<script src="https://code.jquery.com/jquery-1.12.4.min.js" integrity="sha256-ZosEbRLbNQzLpnKIkEdrPv7lOy9C27hHQ+Xp8a4MxAQ=" crossorigin="anonymous"></script> <script> $('#download-pdf').click(function(){ var selected = $('.versions-select option:selected'); var version = 'master'; // var versionText; if (selected.length) { version = selected.text(); // versionText = selected.versionText(); } window.location.href = 'https://www.gitbook.com/download/pdf/book/sibyl229/testing/v/' + version; console.log(version); }); </script>