const githubConrner = `
<a href="https://github.com/tomik23/show-more" class="github-corner" aria-label="View source on GitHub" style="left:0; position:fixed;"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#FD6C6C; color:#fff; position: absolute; top: 0; border: 0; left: 0; transform: scale(-1, 1);" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
`;

document.body.insertAdjacentHTML('beforeend', githubConrner);

// if (navigator.userAgent.indexOf('MSIE') !== -1 || navigator.appVersion.indexOf('Trident/') > -1) {
//   var doc = document.documentElement;
//   doc.setAttribute('data-useragent', 'IE');
// }

// var examples = document.querySelectorAll('.example-html');
// for (let i = 0; i < examples.length; i++) {
//   examples[i].addEventListener('click', function (e) {
//     e.target.parentNode.classList.toggle('open');
//   });
// }

const topButton = document.createElement('a');
topButton.href = '#';
topButton.className = 'top-button'
topButton.textContent = 'top';

const section = document.querySelectorAll('section');

section.forEach((element, index) => {
  if (index > 0) {
    element.insertAdjacentElement("beforeend", topButton.cloneNode(true));
  }
});

// var sections = document.querySelectorAll('section');
// for (var i = 0; i < sections.length; i++) {
//   var element = sections[i].children;
//   var htmlCode = element[1].cloneNode(true).outerHTML.replace(/^\s{1,8}/gm, '');

//   var htmlConverter = htmlCode.replace(/&quot;/gim, "'").replace(/[\u00A0-\u9999<>\\&]/gim, function (i) {
//     return `&#${i.charCodeAt(0)};`;
//   });
//   var htmlShow = element[2].lastElementChild.lastElementChild;
//   htmlShow.insertAdjacentHTML('beforeend', htmlConverter);
// }