diff --git a/project/sass/apps/Announce/AppAnnounce/components/Add.vue b/project/sass/apps/Announce/AppAnnounce/components/Add.vue
index 3823bd2d..d2a189a6 100644
--- a/project/sass/apps/Announce/AppAnnounce/components/Add.vue
+++ b/project/sass/apps/Announce/AppAnnounce/components/Add.vue
@@ -661,6 +661,9 @@ export default {
 </script>
 
 <style lang="scss">
+.is-dark {
+  width: 240px;
+}
 .AppAnnounceDetail-content-wrapper {
   display: flex;
   align-items: center;