diff --git a/app/controllers/event_news_controller.rb b/app/controllers/event_news_controller.rb
index 827b81c..79e4623 100644
--- a/app/controllers/event_news_controller.rb
+++ b/app/controllers/event_news_controller.rb
@@ -651,6 +651,8 @@ class EventNewsController < ApplicationController
     pause_btn_title = (I18n.locale.to_s =="zh_tw") ? "暫停播放" : "pause"
     prev_btn_title = (I18n.locale.to_s =="zh_tw") ? "上一張" : "prev"
     next_btn_title = (I18n.locale.to_s =="zh_tw") ? "下一張" : "next"
+    speaker = event_news["speaker_translations"][locale] rescue ""
+    host = event_news["host_translations"][locale] rescue ""
     {
       "tags" => tags,
       "event_news_files" => files,
@@ -666,8 +668,10 @@ class EventNewsController < ApplicationController
         "host-head" => EventNewsCustomTitle.get_trans('host'),
         "notes-head" => t('event_news.notes'),
         "event_date-head" => EventNewsCustomTitle.get_trans('event_date'),
-        "speaker" => (event_news["speaker_translations"][locale].to_s rescue ""),
-        "host" => (event_news["host_translations"][locale].to_s rescue ""),
+        "speaker-css" => (speaker.blank? ? "display: none;" : ""),
+        "host-css" => (host.blank? ? "display: none;" : ""),
+        "speaker" => speaker,
+        "host" => host,
         "notes" => (event_news["notes_translations"][locale].to_s rescue ""),
         "image" => event_news["image"]["original"],
         "img_src" => img_src,
@@ -744,6 +748,8 @@ class EventNewsController < ApplicationController
           "event_news_links" => links,
           "event_news_files" => files,
           "title" => a.title,
+          "speaker-css" => (a.speaker.blank? ? "display: none;" : ""),
+          "host-css" => (a.host.blank? ? "display: none;" : ""),
           "speaker" => a.speaker,
           "place" => a.place,
           "host" => a.host,