Select the previous instrument also to create inside each of the preliminary button a colored gradient.

Create Online Consulting Layout in Photoshop CS

Blending Options-Gradient Overlay (for the orange button)

Create Online Consulting Layout in Photoshop CS

Gradient?s parameters:


Create Online Consulting Layout in Photoshop CS

Blending Options-Gradient Overlay (for the green button)

Create Online Consulting Layout in Photoshop CS

Gradient?s parameters:

Create Online Consulting Layout in Photoshop CS