Fortunately, after the tiring search I finally found what I need. Here is the procedure.
1. Log in to your blogger account.
2. Proceed to Template Designer then click Advanced
3. Next is click the Add CSS and place this text in green (found below) inside the white box
4. After placing the code you can see right away the effect, so if you like the result you can save it and that’s it done.
So easy right? But sad to say that it almost crack my head. Grrrr… Anyway learning is a daily part of life.