I did it manually. First, make a new file in your favorite editor.

Leave it blank and save it as block-BLOCK_NAME.php

Of course, delete BLOCK_NAME and enter the name you wish.

Upload it into your Block folder.

Go to the Admin Section and make a new block. Select your newly created file and click CREATE.

Now, open the file that you just made blank. I suggest you download other block.php pages and experiment to get the desired html code. It is a little different.

-Rider