diff --git a/UtilitatPdf/MainWindow.xaml b/UtilitatPdf/MainWindow.xaml
index 3491df2..3818e90 100644
--- a/UtilitatPdf/MainWindow.xaml
+++ b/UtilitatPdf/MainWindow.xaml
@@ -7,7 +7,18 @@
         mc:Ignorable="d"
         Loaded="Window_Loaded"
         Title="Utilitats Pdf" Height="450" Width="550" Icon="pdf.ico" WindowStartupLocation="CenterScreen" ResizeMode="NoResize">
-
+    <Window.Resources>
+        <Style x:Key="Opacity1" TargetType="Image">
+            <Style.Triggers>
+                <Trigger Property="IsMouseOver" Value="true">
+                    <Setter Property="Image.Opacity" Value="1" />
+                </Trigger>
+                <Trigger Property="IsMouseOver" Value="false">
+                    <Setter Property="Image.Opacity" Value="0.5" />
+                </Trigger>
+            </Style.Triggers>
+        </Style>
+    </Window.Resources>
     <TabControl>
         <TabItem Header="Merge PDF">
             <Grid>
@@ -34,9 +45,7 @@
                                                     HorizontalAlignment="Left"
                                                     VerticalAlignment="Top"
                                                     Click="btnDelete_Click">
-                                                <StackPanel>
-                                                    <Image Source="delete.png" Width="20" Height="20" />
-                                                </StackPanel>
+                                                <Image Style="{StaticResource Opacity1}" Source="delete.png" Width="20" Height="20"/>
                                                 <Button.Background>
                                                     <SolidColorBrush Color="Gray" Opacity="0.0" />
                                                 </Button.Background>