1. Creating the main navigation bar.
Ok, let us get started. Create a new image using the dimension 800 x 600. Set the background color to white. You can change the background depending on you web site color. Create a new layer, Layer > New > Layer… (Shift+Ctrl+N). Using the Rounded Rectangle Tool 
With that, you should have the effect below.
2. Using the pen tool to create the rectangle shape.
Click on the Pen Tool 
Create the Anchor point as shown in the image below.
Complete the selection, Using the Pen Tool
3. Applying the gradient and blending option.
Click on the Gradient Tool 
Apply the gradient to the rectangle from top to bottom, make sure the rectangle is selected before applying the gradient. This will give you the effect below.
Right click on the rectangle layer and click Blending Options. Now add the Blending Optionssetting below.
Click ok to apply the settings.
4. Creating the Tab buttons.
With that, you should have the effect below.
This layer should be under the main layer with the navigation bar. Just position it to get the effect below.
Tutorial by Pixel Digest
