Since https://github.com/tastejs/todomvc-common/blob/master/base.js#L248

If you want to inject some random content into every application you showcase, there are better ways than this.

I am a little confused layout and styling in template.

1. Why toggle-all is in main section, but visually is in header? What prevents to place it there?
2. Found <label for="toggle-all">, but input with specific name not found. And in css label display: none. Wtf?
3. toggle-all checkbox styled with ::before pseudo class, but input elements has no content and this is hack.
4. In todomvc-app-css specify :focus {outline: none}. That's too bad, because it disables native tab button behavior.

todomvc-app-template and todomvc-app-css need some refactoring. I ready to help.

bower/bower#1067

Changing the HTML would be way too much work and not worth it, but there are still ways to improve it without.

There are also some open tickets on the TodoMVC repo about that.