docs: function toggleCss() {
      if (!cssOpen) {
        exampleCss.classList.remove(hiddenClass);
        showCssBtn.innerHTML = hideText;
        cssOpen = true;
      } else {
        exampleCss.classList.add(hiddenClass);
        exampleScss.scrollIntoView();
        showCssBtn.innerHTML = showText;
        cssOpen = false;
      }
    }