Press on the Ctrl button to mark out the necessary layers and hold the left mouse’s button to take the layers down on Create a new group option. Make four copies of the new group and place them the way you may see below:

We should represent now the button of the site’s header. It’s necessary to use in this case the Ellipse Tool (U).

The layer’s parameters: Fill 0%
Blending Options>Outer Glow

Blending Options>Gradient Overlay

Gradient’s parameters:

Blending Options>Stroke

Gradient’s parameters: