diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.chinese.md
index 04bea525f8..76004a4169 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.chinese.md
@@ -74,7 +74,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.chinese.md
index 572b0f7ce0..64fd410bd1 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.chinese.md
@@ -67,7 +67,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.chinese.md
index f4b5f7e6d1..6808ca58fb 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.chinese.md
@@ -80,7 +80,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.chinese.md
index f153bfa7a7..0b9adde0a3 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.chinese.md
@@ -77,7 +77,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.chinese.md
index 0dc65bbfe3..7eb3a4a3b0 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.chinese.md
@@ -67,7 +67,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.chinese.md
index 5124e0db35..b8bb769b47 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.chinese.md
@@ -79,7 +79,7 @@ tests:
   }
 </style>
 <h1>Cat Friends</h1>
-<p class="message box">
+<p class="message">
   Reply from Server will be here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.chinese.md
index 0ef9ec4e8f..139b7a3fbb 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.chinese.md
@@ -82,7 +82,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>
diff --git a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.chinese.md b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.chinese.md
index 9e917a668b..196ca9ca9a 100644
--- a/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.chinese.md
+++ b/curriculum/challenges/chinese/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.chinese.md
@@ -79,7 +79,7 @@ tests:
   }
 </style>
 <h1>Cat Photo Finder</h1>
-<p class="message box">
+<p class="message">
   The message will go here
 </p>
 <p>