diff --git a/_config.yml b/_config.yml
index 65dc58ffc0..c9a420a422 100644
--- a/_config.yml
+++ b/_config.yml
@@ -261,8 +261,6 @@ sidebar:
   offset: 12
   # Enable sidebar on narrow view (only for Muse | Mist).
   onmobile: false
-  # Click any blank part of the page to close sidebar (only for Muse | Mist).
-  dimmer: false
 
 back2top:
   enable: true
diff --git a/layout/_macro/sidebar.swig b/layout/_macro/sidebar.swig
index 6bf281858d..623e7a6083 100644
--- a/layout/_macro/sidebar.swig
+++ b/layout/_macro/sidebar.swig
@@ -205,7 +205,5 @@
 
     </div>
   </aside>
-  {% if theme.sidebar.dimmer %}
-    <div id="sidebar-dimmer"></div>
-  {% endif %}
+  <div id="sidebar-dimmer"></div>
 {% endmacro %}
diff --git a/source/css/_common/components/sidebar/sidebar-dimmer.styl b/source/css/_common/components/sidebar/sidebar-dimmer.styl
index b209bffce6..20656f8b5c 100644
--- a/source/css/_common/components/sidebar/sidebar-dimmer.styl
+++ b/source/css/_common/components/sidebar/sidebar-dimmer.styl
@@ -1,18 +1,22 @@
-.sidebar-active + #sidebar-dimmer {
-  +mobile() {
+#sidebar-dimmer {
+  hide();
+}
++mobile() {
+  #sidebar-dimmer {
+    show();
+    position: fixed;
+    z-index: $zindex-2;
+    top: 0;
+    left: 100%;
+    width: 100%;
+    height: 100%;
+    background: #000;
+    opacity: 0;
+  }
+  .sidebar-active + #sidebar-dimmer {
     opacity: .7;
     transition: opacity .5s;
+    transform: translateX(-100%);
   }
-  transform: translateX(-100%);
-}
 
-#sidebar-dimmer {
-  show();
-  position: fixed;
-  top: 0;
-  left: 100%;
-  width: 100%;
-  height: 100%;
-  background: #000;
-  opacity: 0;
 }
diff --git a/source/css/_common/components/sidebar/sidebar.styl b/source/css/_common/components/sidebar/sidebar.styl
index a74c4ced73..a7f36cab0f 100644
--- a/source/css/_common/components/sidebar/sidebar.styl
+++ b/source/css/_common/components/sidebar/sidebar.styl
@@ -53,12 +53,12 @@
   img { display: inline-block; }
 }
 
-@import "sidebar-toggle";
 @import "sidebar-author";
 @import "sidebar-author-links";
 @import "sidebar-button";
 @import "sidebar-blogroll";
+@import "sidebar-dimmer";
 @import "sidebar-nav";
-@import "site-state" if hexo-config('site_state');
+@import "sidebar-toggle";
 @import "sidebar-toc" if hexo-config('toc.enable');
-@import "sidebar-dimmer" if hexo-config('sidebar.dimmer');
+@import "site-state" if hexo-config('site_state');
diff --git a/source/js/schemes/muse.js b/source/js/schemes/muse.js
index 8206dbf506..0f28dccbcf 100644
--- a/source/js/schemes/muse.js
+++ b/source/js/schemes/muse.js
@@ -92,23 +92,30 @@ $(document).ready(function() {
   sidebarToggleLines.push(sidebarToggleLine2nd);
   sidebarToggleLines.push(sidebarToggleLine3rd);
 
-  var SIDEBAR_WIDTH = CONFIG.sidebar.width || '320px', SIDEBAR_DISPLAY_DURATION = 200, xPos, yPos;
+  var SIDEBAR_WIDTH = CONFIG.sidebar.width || '320px';
+  var SIDEBAR_DISPLAY_DURATION = 200;
+  var mousePos = {}, touchPos = {};
 
   var sidebarToggleMotion = {
-    toggleEl        : $('.sidebar-toggle'),
-    dimmerEl        : $('#sidebar-dimmer'),
     sidebarEl       : $('.sidebar'),
     isSidebarVisible: false,
     init            : function() {
       sidebarToggleLines.init();
 
-      this.toggleEl.on('click', this.clickHandler.bind(this));
-      this.dimmerEl.on('click', this.clickHandler.bind(this));
-      this.toggleEl.on('mouseenter', this.mouseEnterHandler.bind(this));
-      this.toggleEl.on('mouseleave', this.mouseLeaveHandler.bind(this));
-      this.sidebarEl.on('touchstart', this.touchstartHandler.bind(this));
-      this.sidebarEl.on('touchend', this.touchendHandler.bind(this));
-      this.sidebarEl.on('touchmove', function(e) { e.preventDefault(); });
+      $('body')
+        .on('mousedown', this.mousedownHandler.bind(this))
+        .on('mouseup', this.mouseupHandler.bind(this));
+      $('#sidebar-dimmer').on('click', this.clickHandler.bind(this));
+      $('.sidebar-toggle')
+        .on('click', this.clickHandler.bind(this))
+        .on('mouseenter', this.mouseEnterHandler.bind(this))
+        .on('mouseleave', this.mouseLeaveHandler.bind(this));
+      this.sidebarEl
+        .on('touchstart', this.touchstartHandler.bind(this))
+        .on('touchend', this.touchendHandler.bind(this))
+        .on('touchmove', function(e) {
+          e.preventDefault();
+        });
 
       $(document)
         .on('sidebar.isShowing', function() {
@@ -118,24 +125,39 @@ $(document).ready(function() {
           );
         });
     },
+    mousedownHandler: function(e) {
+      mousePos.X = e.pageX;
+      mousePos.Y = e.pageY;
+    },
+    mouseupHandler: function(e) {
+      var deltaX = e.pageX - mousePos.X;
+      var deltaY = e.pageY - mousePos.Y;
+      if (this.isSidebarVisible && Math.sqrt(deltaX * deltaX + deltaY * deltaY) < 20 && $(e.target).is('.main')) {
+        this.clickHandler();
+      }
+    },
     clickHandler: function() {
       this.isSidebarVisible ? this.hideSidebar() : this.showSidebar();
       this.isSidebarVisible = !this.isSidebarVisible;
     },
     mouseEnterHandler: function() {
-      if (!this.isSidebarVisible) sidebarToggleLines.arrow();
+      if (!this.isSidebarVisible) {
+        sidebarToggleLines.arrow();
+      }
     },
     mouseLeaveHandler: function() {
-      if (!this.isSidebarVisible) sidebarToggleLines.init();
+      if (!this.isSidebarVisible) {
+        sidebarToggleLines.init();
+      }
     },
     touchstartHandler: function(e) {
-      xPos = e.originalEvent.touches[0].clientX;
-      yPos = e.originalEvent.touches[0].clientY;
+      touchPos.X = e.originalEvent.touches[0].clientX;
+      touchPos.Y = e.originalEvent.touches[0].clientY;
     },
     touchendHandler: function(e) {
-      var _xPos = e.originalEvent.changedTouches[0].clientX;
-      var _yPos = e.originalEvent.changedTouches[0].clientY;
-      if (Math.abs(_yPos - yPos) < 20 && ((_xPos - xPos > 30 && isRight) || (_xPos - xPos < -30 && !isRight))) {
+      var deltaX = e.originalEvent.changedTouches[0].clientX - touchPos.X;
+      var deltaY = e.originalEvent.changedTouches[0].clientY - touchPos.Y;
+      if (Math.abs(deltaY) < 20 && ((deltaX > 30 && isRight) || (deltaX < -30 && !isRight))) {
         this.clickHandler();
       }
     },
@@ -201,8 +223,11 @@ $(document).ready(function() {
 
   function updateFooterPosition() {
     var containerHeight = $('#footer').attr('position') ? $('.container').height() + $('#footer').outerHeight(true) : $('.container').height();
-    if (containerHeight < window.innerHeight) $('#footer').css({ 'position': 'fixed', 'bottom': 0, 'left': 0, 'right': 0 }).attr('position', 'fixed');
-    else $('#footer').removeAttr('style position');
+    if (containerHeight < window.innerHeight) {
+      $('#footer').css({ 'position': 'fixed', 'bottom': 0, 'left': 0, 'right': 0 }).attr('position', 'fixed');
+    } else {
+      $('#footer').removeAttr('style position');
+    }
   }
 
   updateFooterPosition();