How to default zoom Safari pages with consistency?

Question

I can't read most default page designs in Safari with my 1920x1080. Everything is too small, not to mention the current obsession with creating vertical pages wasting enough room on both sides of a horizontal monitor to show two pages side by side. The best solution to this problem is a global zoom for all things rendered by Safari, but the mechanism that enables this doesn't seem to work. The reason I want this to work is because I have to manually zoom every page I visit, two to four times. I'm guessing each zoom command activated is about 10% change, but there's nothing to indicate absolute view size. Question has been previously asked in several forms but proposals work inconsistently.
I created a default CSS file that made things a rmore easonable start:
body {
  zoom:140%;
But, this treatment doesn't scale all elements reliably as in the same manner that manually zooming inside Safari does. I presumed all rendering related to the body is affected by this, but the evidence is otherwise. Note that I'm not interested in scaling only text using prefs or the zoom text only mechanism; that leads to similar problems with how elements are designed and interact. My goal is to scale the entire view as designed without using a different screen resolution.
Most recently, Gizmodo serves as an excellent fail example. If you load the page unaltered, command++/- it will zoom faithfully, but if you use the default style sheet above you end up with mismatched elements like frames and advertisements overlapping each other, or inability to scroll. Sometimes these elements will mate with their frames if you zoom to one extent or the other and return to the desired scale, but not always. This basic zoom fail behaviour happens on other sites depending on how elements relate to each other. The bad behaviour is augmented in V8 because embedded youtube videos seem to be more messed up, scaling the controls but not the embedding window, with perceived mouse lag that makes any interaction worse.
The default style sheet seems like exactly what is required, so in a Safari rendered world, why doesn't it work as compared to the zoom command? What does the zoom command do that the zoom style doesn't? I can't seem to whittle it down to other than presuming Safari itself is rendering badly, independent of CSS interpretation. I installed FireFox as an experiment but failed to find an equivalent of Safari's default style sheet, although it does perform successfully when using menu commands, the same as Safari.

Answer 1

Yeah, that's the ticket.
I haven't seen anything zoomed radically bad like how the CCS option behavespanacea, so AllPagesZoom seems to be executing like a scripted command of the original menu item. Oddly, this editor window has teeny weeny text so it's not a panacea. In just a few new tabs I'm already enjoying not pounding the +key, so I hope the extension is effective in the long run. I'll call this solved, although I think the way Safari behaves is hardly a success.
Thanks for the advice.