diff --git a/browser/main/Main.js b/browser/main/Main.js
index e7963b91..9b3e3591 100644
--- a/browser/main/Main.js
+++ b/browser/main/Main.js
@@ -165,7 +165,7 @@ class Main extends React.Component {
         />
         {!config.isSideNavFolded &&
           <div styleName={this.state.isLeftSliderFocused ? 'slider--active' : 'slider'}
-            style={{left: this.state.navWidth - 1}}
+            style={{left: this.state.navWidth}}
             onMouseDown={(e) => this.handleLeftSlideMouseDown(e)}
             draggable='false'
           >
@@ -202,7 +202,7 @@ class Main extends React.Component {
             <div styleName='slider-hitbox' />
           </div>
           <Detail
-            style={{left: this.state.listWidth + 1}}
+            style={{left: this.state.listWidth}}
             {..._.pick(this.props, [
               'dispatch',
               'data',
diff --git a/browser/main/Main.styl b/browser/main/Main.styl
index 51c5e0de..fead3453 100644
--- a/browser/main/Main.styl
+++ b/browser/main/Main.styl
@@ -11,15 +11,10 @@
 
 .slider
   absolute top bottom
-  width 1px
-  background-color $ui-borderColor
-  border-width 0
-  border-style solid
-  border-color $ui-borderColor
+  width 0
 
 .slider--active
   @extend .slider
-  background-color $ui-button--active-backgroundColor
 
 .slider-hitbox
   absolute top bottom left right
@@ -32,10 +27,3 @@
 body[data-theme="dark"]
   .root
     absolute top left bottom right
-
-  .slider
-    background-color $ui-dark-borderColor
-    border-color $ui-dark-borderColor
-
-  .slider--active
-    background-color $ui-button--active-backgroundColor