diff --git a/docs/.vuepress/components/CodePen.vue b/docs/.vuepress/components/CodePen.vue
index 43a7a4f..54e8801 100644
--- a/docs/.vuepress/components/CodePen.vue
+++ b/docs/.vuepress/components/CodePen.vue
@@ -11,5 +11,114 @@
 <script>
 export default {
   props: ['url', 'height'],
+  mounted () {
+    document.getElementsByClassName || (document.getElementsByClassName = function (e) {
+      var n, t, r, a = document, o = [];
+      if (a.querySelectorAll) return a.querySelectorAll('.' + e);
+      if (a.evaluate) for (t = './/*[contains(concat(\' \', @class, \' \'), \' ' + e + ' \')]', n = a.evaluate(t, a,
+        null, 0,
+        null); r = n.iterateNext();) o.push(r); else for (n = a.getElementsByTagName('*'), t = new RegExp(
+        '(^|\\s)' + e + '(\\s|$)'), r = 0; r < n.length; r++) t.test(n[r].className) && o.push(n[r]);
+      return o;
+    }), function () {
+      function e () {
+        function e () {
+          for (var e = document.getElementsByClassName('codepen'), t = e.length - 1; t > -1; t--) {
+            var u = a(e[t]);
+            if (0 !== Object.keys(u).length && (u = o(u), u.user = n(u, e[t]), r(u))) {
+              var c = i(u), l = s(u, c);
+              f(e[t], l);
+            }
+          }
+          m();
+        }
+
+        function n (e, n) {
+          if ('string' == typeof e.user) return e.user;
+          for (var t = 0, r = n.children.length; t < r; t++) {
+            var a = n.children[t], o = a.href || '', i = o.match(/codepen\.(io|dev)\/(\w+)\/pen\//i);
+            if (i) return i[2];
+          }
+          return 'anon';
+        }
+
+        function r (e) {return e['slug-hash'];}
+
+        function a (e) {
+          for (var n = {}, t = e.attributes, r = 0, a = t.length; r < a; r++) {
+            var o = t[r].name;
+            0 === o.indexOf('data-') && (n[o.replace('data-', '')] = t[r].value);
+          }
+          return n;
+        }
+
+        function o (e) {
+          return e.href && (e['slug-hash'] = e.href), e.type && (e['default-tab'] = e.type), e.safe &&
+          ('true' === e.safe ? e.animations = 'run' : e.animations = 'stop-after-5'), e;
+        }
+
+        function i (e) {
+          var n = u(e), t = e.user ? e.user : 'anon', r = '?' + l(e),
+            a = e.preview && 'true' === e.preview ? 'embed/preview' : 'embed',
+            o = [n, t, a, e['slug-hash'] + r].join('/');
+          return o.replace(/\/\//g, '//');
+        }
+
+        function u (e) {
+          return e.host ? c(e.host) : 'file:' === document.location.protocol
+            ? 'https://codepen.io'
+            : '//codepen.io';
+        }
+
+        function c (e) {return e.match(/^\/\//) || !e.match(/https?:/) ? document.location.protocol + '//' + e : e;}
+
+        function l (e) {
+          var n = '';
+          for (var t in e) '' !== n && (n += '&'), n += t + '=' + encodeURIComponent(e[t]);
+          return n;
+        }
+
+        function s (e, n) {
+          var r;
+          e['pen-title'] ? r = e['pen-title'] : (r = 'CodePen Embed ' + t, t++);
+          var a = {
+            id: 'cp_embed_' + e['slug-hash'].replace('/', '_'),
+            src: n,
+            scrolling: 'no',
+            frameborder: '0',
+            height: d(e),
+            allowTransparency: 'true',
+            allowfullscreen: 'true',
+            allowpaymentrequest: 'true',
+            name: 'CodePen Embed',
+            title: r,
+            'class': 'cp_embed_iframe ' + (e['class'] ? e['class'] : ''),
+            style: 'width: ' + p + '; overflow: hidden;',
+          }, o = '<iframe ';
+          for (var i in a) o += i + '="' + a[i] + '" ';
+          return o += '></iframe>';
+        }
+
+        function d (e) {return e.height ? e.height : 300;}
+
+        function f (e, n) {
+          if (e.parentNode) {
+            var t = document.createElement('div');
+            t.className = 'cp_embed_wrapper', t.innerHTML = n, e.parentNode.replaceChild(t, e);
+          } else e.innerHTML = n;
+        }
+
+        function m () {'function' == typeof __CodePenIFrameAddedToPage && __CodePenIFrameAddedToPage();}
+
+        var p = '100%';
+        e();
+      }
+
+      function n (e) {/in/.test(document.readyState) ? setTimeout('window.__cp_domReady(' + e + ')', 9) : e();}
+
+      var t = 1;
+      window.__cp_domReady = n, window.__CPEmbed = e, n(function () {new __CPEmbed;});
+    }();
+  },
 };
 </script>