Question

Is it possible to retrieve all of the CSS rules applied to an element, even if none has been applied (computed style by the browser), e.g.

alert($('#element').css());

Should have feature like this to show every css rule that can output like this:

position: static,
height: auto,
width: auto,
font-size: 100%,
line-height: 1,
z-index: 0
// and so on...

Answer 1

Here’s some info: Get all CSS styles of an element with JavaScript

Unfortunately there’s no solid solution, and it looks like there will be a few gotchas.
However, for simple debugging it should probably be good enough.