Function sticky

docsify.js:3731–3743

()

    }
    
    function sticky() {
      var cover = getNode('section.cover');
      if (!cover) {
        return
      }
      var coverHeight = cover.getBoundingClientRect().height;
    
      if (window.pageYOffset >= coverHeight || cover.classList.contains('hidden')) {
        toggleClass(body, 'add', 'sticky');
      } else {
        toggleClass(body, 'remove', 'sticky');
      }
    }
    
    /**
     * Get and active link