diff --git a/client/components/Reader/HelpPage/CommonHelpPage/CommonHelpPage.vue b/client/components/Reader/HelpPage/CommonHelpPage/CommonHelpPage.vue
index 3782bd9a..f4558478 100644
--- a/client/components/Reader/HelpPage/CommonHelpPage/CommonHelpPage.vue
+++ b/client/components/Reader/HelpPage/CommonHelpPage/CommonHelpPage.vue
@@ -55,7 +55,7 @@ class CommonHelpPage extends Vue {
     flex: 1;
     padding: 15px;
     overflow-y: auto;
-    font-size: 150%;
+    font-size: 120%;
     line-height: 130%;
 }
 
diff --git a/client/components/Reader/HelpPage/HotkeysHelpPage/HotkeysHelpPage.vue b/client/components/Reader/HelpPage/HotkeysHelpPage/HotkeysHelpPage.vue
index 8052c409..3c7596dc 100644
--- a/client/components/Reader/HelpPage/HotkeysHelpPage/HotkeysHelpPage.vue
+++ b/client/components/Reader/HelpPage/HotkeysHelpPage/HotkeysHelpPage.vue
@@ -44,7 +44,7 @@ class HotkeysHelpPage extends Vue {
     flex: 1;
     padding: 15px;
     overflow-y: auto;
-    font-size: 150%;
+    font-size: 120%;
     line-height: 130%;
 }
 
diff --git a/client/components/Reader/HelpPage/MouseHelpPage/MouseHelpPage.vue b/client/components/Reader/HelpPage/MouseHelpPage/MouseHelpPage.vue
index 3e1d9410..c1e2afe9 100644
--- a/client/components/Reader/HelpPage/MouseHelpPage/MouseHelpPage.vue
+++ b/client/components/Reader/HelpPage/MouseHelpPage/MouseHelpPage.vue
@@ -41,7 +41,7 @@ class MouseHelpPage extends Vue {
     flex: 1;
     padding: 15px;
     overflow-y: auto;
-    font-size: 150%;
+    font-size: 120%;
     line-height: 130%;
 }