I understand the desire for a clean look and feel but restricting the content to only 540px wide seems a bit strange - I mean I've got huge swathes of white screen on either side of a really narrow box of text in the middle.
Then there's a code snippet which scrolls off the side of this 540px box because it's actually a decent code snippet.
Take a look at the answers on https://community.atlassian.com/t5/Answers-Developer-Questions/Gaining-WebSudo-access-while-using-rest-api-2/qaq-p/570911 for example.