diff --git a/app/views/exercise/_show_head.html.erb b/app/views/exercise/_show_head.html.erb
index cfa814c2e..8a0c182ce 100644
--- a/app/views/exercise/_show_head.html.erb
+++ b/app/views/exercise/_show_head.html.erb
@@ -11,6 +11,8 @@
         <span>测验时长：<%= exercise.time %>分钟</span>
     <% end %>
   </div>
-  <pre class="fontGrey2 font_cus"><%= exercise.exercise_description.nil? ? "" :exercise.exercise_description.html_safe%></pre>
+  <pre class="fontGrey2 font_cus" style="white-space:pre-wrap;white-space:-moz-pre-wrap;white-space:pre-wrap;white-space:-o-pre-wrap;word-break:normal;word-wrap: break-word;">
+    <%= exercise.exercise_description.nil? ? "" :exercise.exercise_description.html_safe%>
+  </pre>
   <div class="cl"></div>
 </div>
\ No newline at end of file