diff --git a/app/templates/exercise_export/exercise_export.css b/app/templates/exercise_export/exercise_export.css
index 828987bb7..8e950f7ed 100644
--- a/app/templates/exercise_export/exercise_export.css
+++ b/app/templates/exercise_export/exercise_export.css
@@ -332,6 +332,9 @@ textarea{
 .mt-2{
     margin-top:-2px;
 }
+.width100{
+    width:100%;
+}
 .ex-scores{
     width:100%;
     display:inline-block;
diff --git a/app/templates/exercise_export/exercise_user.html.erb b/app/templates/exercise_export/exercise_user.html.erb
index 52a083eab..7e3a5a64f 100644
--- a/app/templates/exercise_export/exercise_user.html.erb
+++ b/app/templates/exercise_export/exercise_user.html.erb
@@ -17,7 +17,7 @@
         </p>
       </div>
     </div>
-    <div class="mbt20 bgc">
+    <div class="mbt20 bgc width100">
       <div class="ex-scores pd10 text-gray fs13">
         <p class="clearfix">
           <% if @exercise_single_ques_count > 0 %>