The dev tools threw me for a while - the most specific rule said the top border was 1px, but the computed style said 0px. It was only when I disabled all three "display" rules and the border appeared that I noticed the computed display value.
"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer
I saw that Chris fixed it and saw that he used escape char, but I actually used to MARKUP (as web developer) so actually MARKDOWN stands in my way...
My question wasn't (or wasn't only) about how to fix, but how to turn off...
Thank you in any case!!!
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
At work, I'm using IE9 and it shows up there (without compatibility mode).
".45 ACP - because shooting twice is just silly" - JSOP, 2010 - You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010 - When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013
Turns out the issue was that you didn't check the "Mark this article as updated" checkbox just above the "Submit" button when updating the article. I've done it for FastJSON, but will leave it to you to update the other.
Possibly it cached the CSS, maybe if you try with Ctrl-F5 (or the same combination under chrome to force-reload the page) it will give you the same result. Under firefox I can view the buttons disabling the CSS.