diff --git a/src/ViewContainer.h b/src/ViewContainer.h
--- a/src/ViewContainer.h
+++ b/src/ViewContainer.h
@@ -101,6 +101,7 @@
     /** Changes the active view to the last used view */
     void activateLastUsedView(bool reverse);
 
+    void setCss(const QString& styleSheet = QString());
     void setCssFromFile(const QUrl& url);
     /**
      * This enum describes the directions
diff --git a/src/ViewContainer.cpp b/src/ViewContainer.cpp
--- a/src/ViewContainer.cpp
+++ b/src/ViewContainer.cpp
@@ -201,10 +201,16 @@
     if (KonsoleSettings::tabBarUseUserStyleSheet()) {
         setCssFromFile(KonsoleSettings::tabBarUserStyleSheetFile());
     } else {
-        setStyleSheet(QString());
+        setCss();
     }
 }
 
+void TabbedViewContainer::setCss(const QString& styleSheet)
+{
+    static const QString defaultCss = QStringLiteral("QTabWidget::tab-bar, QTabWidget::pane { margin: 0; }\n");
+    setStyleSheet(defaultCss + styleSheet);
+}
+
 void TabbedViewContainer::setCssFromFile(const QUrl &url)
 {
     // Let's only deal w/ local files for now
@@ -218,7 +224,7 @@
     }
 
     QTextStream in(&file);
-    setStyleSheet(in.readAll());
+    setCss(in.readAll());
 }
 
 void TabbedViewContainer::moveActiveView(MoveDirection direction)