User blog comment:Kirkburn/Technical Update: July 1, 2015/@comment-5558012-20150701203129/@comment-5454372-20150705151011

Two screenshots attached from Desktop XL to show a couple of things. Please note that I took the screenshots from a Chrome browser as a guest (so my own personal CSS wouldn't modify anything on the screen).

Screen size is 1920 1080.

Topmost slice is how the article looks normally. Middle slice is what the preview from the classic editor shows when set to Desktop XL, while the bottom slice is the text size in the classic editor. All of these were taken while the browser window was fully maximised.

Took the upper two slices from the above screenshot and aligned them horizontally so the left edge of the text was perfectly aligned (I aligned the edges of the two Fs using another line which I deleted before saving the image). The orange section included in the bottom right corner is to show the displacement, in case that's relevant later on.