Is there anything wrong with positioning all elements relatively?

Question

Often I find myself attaching a class to an element just to give it position: relative; so that I can position it\'s children using position: absolute;

Answer 1

If you apply position: relative to all elements in the page, you won't be able to use position: absolute efficiently, because you can't position an element to the grandparent and you will probably break in a unpredictable way external plugins/modules that rely on position: absolute.

You may encounter problems with z-index (for example in dropdowns menu), and you'll end up overwriting this behaviour with position: static and position: absolute.