diff --git a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.russian.md
index 09d4aca23d..5f41c04a30 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/access-the-json-data-from-an-api.russian.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/russian/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.russian.md
index 5ef2c62b2c..cc650a7fc6 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/change-text-with-click-events.russian.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/russian/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.russian.md
index f6d0d6930e..142ebb508e 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/convert-json-data-to-html.russian.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/russian/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.russian.md
index ba828c8c77..29b2bc598f 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/get-json-with-the-javascript-xmlhttprequest-method.russian.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/russian/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.russian.md
index 03cff8829c..e9afb4bb24 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/handle-click-events-with-javascript-using-the-onclick-property.russian.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/russian/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.russian.md
index 91c0b7f8cc..956c18ce4e 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/post-data-with-the-javascript-xmlhttprequest-method.russian.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/russian/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.russian.md
index 2c3644eeed..5c10e3df19 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/pre-filter-json-to-get-the-data-you-need.russian.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/russian/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.russian.md b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.russian.md
index abc48b1967..8e5adf1cba 100644
--- a/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.russian.md
+++ b/curriculum/challenges/russian/04-data-visualization/json-apis-and-ajax/render-images-from-data-sources.russian.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>