fix a few translate.js bugs.

public/resources/css/_translate.scss

@@ -1,4 +1,4 @@
-.docs-content {
+.docs-content, .l-content, .main-footer {
   display: none;
   .original-english {
     border-top: 1px dashed $regal;

public/translate/cn/translate.js

@@ -1,10 +1,10 @@
 // TODO: refactor me!
 var sourceVisible = localStorage.getItem('source-visible') === 'true';
 (function ($) {
-    var content = document.querySelector('article.docs-content');
+  var content = document.querySelector('article');
   var footer = document.querySelector('.main-footer');
-
   processContainer(content);
+  processContainer(footer);
 
   if (!sourceVisible) {
     var nodes = document.querySelectorAll('.original-english');
@@ -40,6 +40,7 @@ var sourceVisible = localStorage.getItem('source-visible') === 'true';
         case 'H5':
         case 'H6':
         case 'HEADER':
+        case 'LI':
           if (processBlock(node)) {
             i++;
           }
@@ -47,7 +48,8 @@ var sourceVisible = localStorage.getItem('source-visible') === 'true';
         case 'TD':
         case 'TH':
           processContainer(node);
-                    return; // stop
+          // return; // stop
+          break;
         default:
           if (node.children.length > 0) {
             processContainer(node);
@@ -81,7 +83,7 @@ var sourceVisible = localStorage.getItem('source-visible') === 'true';
           $sibling.addClass('translated');
           $sibling.addClass('translated-cn');
           $sibling.after($current);
-                    $sibling.on('click', function() {
+          $sibling.on('click', function () {
             $current.toggleClass('hidden');
           });
           return true;
@@ -95,8 +97,12 @@ var sourceVisible = localStorage.getItem('source-visible') === 'true';
   }
 
   function isPureEnglish(text) {
+    if(text){
       return !/\p{Han}/.test(text);
     }
+    return false;
+
+  }
 
   function attributesToString(node) {
     return _.chain(node.attributes)