diff --git a/source/css/_schemes/Muse/_sidebar.styl b/source/css/_schemes/Muse/_sidebar.styl
index 7e786ef..ae10734 100644
--- a/source/css/_schemes/Muse/_sidebar.styl
+++ b/source/css/_schemes/Muse/_sidebar.styl
@@ -1,6 +1,8 @@
 if (hexo-config('sidebar.position') == 'right') {
   .sidebar-active {
-    +desktop() {
+    // Note: $sidebar-desktop + $content-desktop-large should be greater than desktop-large threshold
+    // Otherwise a horizontal scrollbar will appear
+    +desktop-large() {
       padding-right: $sidebar-desktop;
     }
   }
@@ -14,7 +16,7 @@ if (hexo-config('sidebar.position') == 'right') {
   }
 } else {
   .sidebar-active {
-    +desktop() {
+    +desktop-large() {
       padding-left: $sidebar-desktop;
     }
   }
@@ -94,26 +96,25 @@ if (hexo-config('sidebar.position') == 'right') {
 }
 
 .sidebar-dimmer {
-  display: none;
-}
+  background: black;
+  height: 100%;
+  left: 0;
+  opacity: 0;
+  position: fixed;
+  top: 0;
+  transition: visibility .4s, opacity .4s;
+  visibility: hidden;
+  width: 100%;
+  z-index: $zindex-1;
 
-+tablet-mobile() {
-  .sidebar-dimmer {
-    background: black;
-    display: block;
-    height: 100%;
-    left: 0;
-    opacity: 0;
-    position: fixed;
-    top: 0;
-    transition: visibility .4s, opacity .4s;
-    visibility: hidden;
-    width: 100%;
-    z-index: $zindex-1;
-
-    .sidebar-active & {
-      opacity: .7;
-      visibility: visible;
-    }
+  .sidebar-active & {
+    opacity: .7;
+    visibility: visible;
+  }
+}
+
++desktop-large() {
+  .sidebar-dimmer {
+    display: none;
   }
 }
diff --git a/source/css/noscript.styl b/source/css/noscript.styl
index a1f18bf..1a1eea5 100644
--- a/source/css/noscript.styl
+++ b/source/css/noscript.styl
@@ -1,3 +1,5 @@
+@import '_variables/base';
+
 body { margin-top: 2rem; }
 
 .use-motion .menu-item,
@@ -30,7 +32,7 @@ body { margin-top: 2rem; }
 .sidebar-panel { display: block; }
 
 .noscript-warning {
-  background-color: #f55;
+  background-color: lighten($red, 20%);
   color: white;
   font-family: sans-serif;
   font-size: 1rem;
@@ -40,5 +42,5 @@ body { margin-top: 2rem; }
   text-align: center;
   top: 0;
   width: 100%;
-  z-index: 50;
+  z-index: $zindex-5;
 }
diff --git a/source/js/utils.js b/source/js/utils.js
index 9920825..0f2dad3 100644
--- a/source/js/utils.js
+++ b/source/js/utils.js
@@ -286,7 +286,7 @@ NexT.utils = {
   },
 
   updateSidebarPosition: function() {
-    if (window.innerWidth < 992 || CONFIG.scheme === 'Pisces' || CONFIG.scheme === 'Gemini') return;
+    if (window.innerWidth < 1200 || CONFIG.scheme === 'Pisces' || CONFIG.scheme === 'Gemini') return;
     // Expand sidebar on post detail page by default, when post has a toc.
     const hasTOC = document.querySelector('.post-toc');
     let display = CONFIG.page.sidebar;