Change go back button.

app/views/surveys/answer_success.html.erb

@@ -48,4 +48,4 @@
 	<h3><%= t('survey.answer_success')%></h3>
 <% end %>
 
-<a href="<%= data['url'] %>">Go Back</a>
+<a href="<%= data['url'] %>" class="btn btn-primary" title="<%=t("survey.go_back")%>"><%=t("survey.go_back")%></a>

config/locales/en.yml

@@ -5,6 +5,7 @@ en:
     type:
       '0': "Total"
       '1': "Average"
+    go_back: Go Back
     weight: Weight
     taken_survey: "Taken Survey"
     please_login_first: "Please login first!"

config/locales/zh_tw.yml

@@ -7,6 +7,7 @@ zh_tw:
     type:
       '0': "總分"
       '1': "平均"
+    go_back: 回上一頁
     weight: 權重
     taken_survey: "填寫問卷"
     please_login_first: "請先登入網站!"