Shaded text box for code block in blogger templates

I am using this trick from Geek Pit to create the shaded text boxes to put my codes in my unix bash scripting blog. Thought of sharing here. Its useful.

Blogger templates (XML) with 3 columns

Was searching for some good looking templates for blogger, found this very very useful link

There you can find most of the default templates provided by blogger with the 3 columns feature.