I'm unable to inject a style with an “!important” rule

Question

I tried to inject a style using this code:

document.body.style.color=\'green!important\';

Per the CSS cascade ref, by applying the !i

Answer 1

I would like to pose that it may not be working not so much due to any error in code (excepting the space) but more because modifying the body tag isn't a specific enough element, class, or what have you to create the desired effect.

Like for instance the page text of a search result has a class of "st". all search results are each encapsulated in an