IMPORTANT: Please please please do not distribute/copy any tutorials found here to any other tumblr sites. I have spent a very very long time making this for you and it would literally break my heart to see it's content splashed over any other tutorial blog. I know you wouldn't do that anyway, 'cos you're beauts. Please note that if you do decide to copy my tutorials you will be reported, there's not excuse for laziness.
Every theme needs structure for many reasons. One, it’s easier for you to edit, two, if you don’t have structure, tumblr will tell you the html is invalid when you go to upload it! It’s annoying.
I’ve given you the basic structure below (along with explanation), as to be honest it’s pretty much the same for every theme… everything with a good ordered layout.