diff --git a/css/styles.css b/css/styles.css
index 86666971..92fd33c4 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -314,7 +314,7 @@ radio {
 .gpufriendly {
   box-shadow: -8px -8px transparent, 8px 8px transparent;
 }
-.gpufriendlyfs {
+.fullscreen.gpufriendlyfs {
   box-shadow: none;
 }
 
diff --git a/src/appBase.js b/src/appBase.js
index 52fef493..0a8eeee1 100644
--- a/src/appBase.js
+++ b/src/appBase.js
@@ -34,6 +34,8 @@ class ClapperAppBase extends Gtk.Application
 
         if(!settings.get_boolean('render-shadows'))
             window.add_css_class('gpufriendly');
+
+        window.add_css_class('gpufriendlyfs');
     }
 
     vfunc_activate()
diff --git a/src/widget.js b/src/widget.js
index 9f328c03..70679a3a 100644
--- a/src/widget.js
+++ b/src/widget.js
@@ -142,10 +142,6 @@ class ClapperWidget extends Gtk.Grid
         debug('changing fullscreen mode');
         this.isFullscreenMode = isFullscreen;
 
-        const root = this.get_root();
-        const action = (isFullscreen) ? 'add' : 'remove';
-        root[action + '_css_class']('gpufriendlyfs');
-
         if(!isFullscreen)
             this._clearTimeout('updateTime');