Description: ------------ Currently, we have add*() methods in each element class. This duplicates a lot of code, which is not what we want. Since PHP doesn't support traits yet, we have to build a nice hierarchy and try to inherit as much as possible. We might also add some array access for easy adding, instead of using add*(): $element[] = 'This is a new paragraph'; $element[] = array('img', '/path/to/image'); We'll see.