Step 1:
Let's start out by creating a new file. I used a 400x200 pixels canvas set at 72dpi, and I filled my background with a white color. Now create a new layer set and name it 'Sleek Button'.
Select the Rounded Rectangle Tool and above your screen under the options palette choose Fill Pixels, set the radius to 4 px and check anti-aliased. Create a new layer and draw a rounded rectangle with 105x27 px dimensions and #00ABEA color shade.
Step 2:
Under Layer Style(Layer > Layer Style) add an Outer Glow, Inner Glow and Gradient Overlay blending options to your blue rounded rectangle layer.
Step 3:
Now draw a skinny black rectangle with 95x4 px dimensions inside your current button design.
Step 4:
Under Layer Style(Layer > Layer Style) add a Gradient Overlay blending option to your black rectangle layer. Then set the layers blending mode to Lighten.
Step 5:
Now choose the Horizontal Type Tool and set the font family to Arial, regular, 12 pt, crisp and white color. In a new text layer type the name of your first sleek button.
Step 6:
Under Layer Style(Layer > Layer Style) add a Stroke blending option to your text layer from step five.
Results:





More Photoshop: