diff --git a/browser/main/Detail/MarkdownNoteDetail.js b/browser/main/Detail/MarkdownNoteDetail.js
index 6053c39d..3f0217af 100644
--- a/browser/main/Detail/MarkdownNoteDetail.js
+++ b/browser/main/Detail/MarkdownNoteDetail.js
@@ -31,13 +31,9 @@ class MarkdownNoteDetail extends React.Component {
       }, props.note),
       isLockButtonShown: false,
       isLocked: false,
-      fullScreen: {
-        status: false,
-        oldState: {
-          nd : 0,
-          mb : 0
-        }
-      }
+      fullScreen: false,
+      widthOfNoteDetail: 0,
+      widthOfMainBody: 0
     }
     this.dispatchTimer = null
 
diff --git a/browser/main/Detail/SnippetNoteDetail.js b/browser/main/Detail/SnippetNoteDetail.js
index 4732e1f6..7f98929c 100644
--- a/browser/main/Detail/SnippetNoteDetail.js
+++ b/browser/main/Detail/SnippetNoteDetail.js
@@ -49,13 +49,9 @@ class SnippetNoteDetail extends React.Component {
       }, props.note, {
         snippets: props.note.snippets.map((snippet) => Object.assign({}, snippet))
       }),
-      fullScreen: {
-        status: false,
-        oldState: {
-          nd : 0,
-          mb : 0
-        }
-      }
+      fullScreen: false,
+      widthOfNoteDetail: 0,
+      widthOfMainBody: 0
 
     }
   }
diff --git a/browser/main/Main.js b/browser/main/Main.js
index 8075995c..c4773405 100644
--- a/browser/main/Main.js
+++ b/browser/main/Main.js
@@ -201,6 +201,7 @@ class Main extends React.Component {
         />
         {!config.isSideNavFolded &&
           <div styleName={this.state.isLeftSliderFocused ? 'slider--active' : 'slider'}
+            id='slider-left'
             style={{left: this.state.navWidth}}
             onMouseDown={(e) => this.handleLeftSlideMouseDown(e)}
             draggable='false'
@@ -232,6 +233,7 @@ class Main extends React.Component {
             ])}
           />
           <div styleName={this.state.isRightSliderFocused ? 'slider-right--active' : 'slider-right'}
+            id='slider-right'
             style={{left: this.state.listWidth - 1}}
             onMouseDown={(e) => this.handleRightSlideMouseDown(e)}
             draggable='false'