So, create a new document with dimensions 90×90 pixels, then convert the new layer, take the tool Elliptical Marquee Tool and select a circle with a size of about 80×80 pixels. Press Shift+F5, after selecting black as the main color to paint our area with this color.
Go to the settings options overlay and select Gradient Overlay. Now select the color #baff9c to the left of the slider and set it to 25% position.
Next, turn Inner Shadow and change the opacity to 100%, distance to 0 pixels, the size of 30 pixels. Choose from a set of contours Gaussian preset.
Include shadow – color change on #3a6228, the distance to 0 pixels, the size is 8 pixels.
Now let’s finish our button by adding a glossy effect.
Create a new layer, use the tool Elliptical Marquee Tool and the allocated region size 40х20 pixels. Painted the area with black and white gradient on a new layer. Change blending mode of layer to Screen and set the opacity to 90%. Now our button is ready.
You may need to change its color. To do this, click on the layers panel Create new fill or adjustment layer, select Hue/Saturation and put a checkmark in the Colorize. Now, moving the sliders to the color, saturation and lightness, you can configure any color for a drop.