fix bug

app/templates/exercise_export/exercise_export.css

@@ -41,6 +41,9 @@ p{
 .mt8{
     margin-top:8px;
 }
+.mt10{
+    margin-top:10px;
+}
 .mbt10{
     margin: 10px 0;
 }

app/templates/exercise_export/exercise_user.html.erb

@@ -182,7 +182,7 @@
                 <% q.exercise_choices.each do |s| %>
                   <% check_answer = (user_answer.present? && (s.id == user_answer.first.exercise_choice_id)) ? "choose-answer" : '' %>
                   <div class="pbt10 clearfix main-choice">
-                    <span class="choose-radio <%= check_answer %> pull-left mt8"></span>
+                    <span class="choose-radio <%= check_answer %> pull-left mt10"></span>
                     <span class="inline-block pull-left ml10 choice-text"><%= to_markdown(s.choice_text,@request_url) %></span>
                   </div>
                 <% end %>
@@ -191,9 +191,9 @@
                   <% check_answer = (user_answer.present? && (user_answer.pluck(:exercise_choice_id).include?(s.id))) ? true : false %>
                   <div class="pbt10 clearfix main-choice">
                     <% if check_answer %>
-                      <span class="choose-checkbox choose-answer-multi mt8 pull-left" ></span>
+                      <span class="choose-checkbox choose-answer-multi mt10 pull-left" ></span>
                     <% else %>
-                      <span class="choose-checkbox pull-left mt8"></span>
+                      <span class="choose-checkbox pull-left mt10"></span>
                     <% end %>
                     <span class="inline-block pull-left choice-text ml10"><%= to_markdown(s.choice_text,@request_url) %></span>
                   </div>
@@ -227,9 +227,11 @@
                 <% end %>
               <% elsif q_type == 4 %>
                 <% check_answer = (user_answer.present?  ? user_answer.first.answer_text : '--') %>
-                <p class="flex-nowrap">
-                  <span class="null-answer main-height"><%= to_markdown(check_answer,@request_url) %></span>
-                </p>
+                <div class="flex-nowrap">
+                  <div class="null-answer main-height">
+                    <%= to_markdown(check_answer,@request_url) %>
+                  </div>
+                </div>
               <% else %>
                 <div class="mbt10">
                   <p class="text-gray mbt10">