diff --git a/application/appRc.qrc b/application/appRc.qrc
index 8954102..dda944f 100644
--- a/application/appRc.qrc
+++ b/application/appRc.qrc
@@ -2,5 +2,6 @@
     <qresource prefix="/">
         <file>icons/login_32.png</file>
         <file>icons/login_64.png</file>
+        <file>style.css</file>
     </qresource>
 </RCC>
diff --git a/application/mainwindow.cpp b/application/mainwindow.cpp
index 2d26eb6..85e65ec 100644
--- a/application/mainwindow.cpp
+++ b/application/mainwindow.cpp
@@ -18,6 +18,13 @@ MainWindow::MainWindow(QWidget *parent) :
 
     m_loginDialog = new LoginDialog(this);
 
+    QFile styleFile(":/style.css");
+
+    if (styleFile.open(QIODevice::ReadOnly | QIODevice::Text))
+    {
+        this->setStyleSheet(styleFile.readAll());
+    }
+
     connect(m_loginDialog, &LoginDialog::accepted, [this]{
         PermissionService service;
         QSharedPointer<User> u = service.loadUser(m_loginDialog->login());
diff --git a/application/mainwindow.ui b/application/mainwindow.ui
index 901b429..35c69a0 100644
--- a/application/mainwindow.ui
+++ b/application/mainwindow.ui
@@ -21,6 +21,9 @@
     <property name="leftMargin">
      <number>0</number>
     </property>
+    <property name="topMargin">
+     <number>0</number>
+    </property>
     <item>
      <widget class="QWidget" name="navigation" native="true">
       <property name="enabled">
@@ -53,7 +56,7 @@
      <x>0</x>
      <y>0</y>
      <width>1000</width>
-     <height>19</height>
+     <height>21</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">
diff --git a/application/style.css b/application/style.css
new file mode 100644
index 0000000..7125770
--- /dev/null
+++ b/application/style.css
@@ -0,0 +1,16 @@
+#navigation {
+    background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:1, y2:0, stop:0 rgba(0, 0, 0, 255), stop:1 rgba(255, 255, 255, 255));
+}
+
+#navigation QPushButton {
+    color: black;
+    border: 1px solid #555;
+    border-radius: 11px;
+    padding: 5px;
+    background: qradialgradient(cx: 0.3, cy: -0.4,
+    fx: 0.3, fy: -0.4,
+    radius: 1.35, stop: 0 #e3e67e, stop: 1 #f3f5d0);
+    min-width: 80px;
+    min-height: 40px;
+    font: 14px;
+}