This tutorial exercise provides step by step instructions explaining how to create a box with 3D effect. Follow the steps as shown below:
1) Open a New document in Photoshop. It can be of any size that you want. Create a new layer (Press Shift + Ctrl + N).
This will create a new layer. Select the rectangle Marquee tool. as shown in Figure 1.
Figure 1.
2) Make a selection line as shown in Figure 2.
Figure 2.
3) Now set the foreground color and the background color. You can choose any color you want. I have selected the foreground
color as #345581 and background color as #18293d as shown in Figure 3 and
Figure 4.