Free Tumblr base code for column themes
We’ve released a free base code/boilerplate for Tumblr that includes infinite scroll and a Masonry layout.
You can use as much of the code as you need. For example, you could delete all the inline CSS to create your own styles if you wanted to.
This base code is intended for all theme developers and people looking to learn more about Tumblr themes, there are no restrictions to the extent you can use the code.
Download base code (link includes more information for theme makers)