Nope. But I am reading it on a 1280x800 tablet in portrait mode. Or I have two side by side 0n a 2560x1440 monitor (effectively 1280 px wide each). Or even worse, two side by side on a laptop with 1920x1200 (960 px wide each). 600px makes all of the above scenarios doable with reasonable margins and other layout items like a navigation menu and ads.
