Thank you, sorry to be so unknowledgable.
You are right, once the cache cleared, the page displays perfectly.
May I ask what you did to make it work?
No, sorry, still not working. The same issue with the site not displaying properly. That is on a MacBook Pro 2016 with Safari.
It does looks perfect on the Mac with Google Chrome and Opera, but it is not working on a Windows laptop with Internet Explorer.
I’m also having this problem on http://www.bangkokchess.com, using Sparkling wordpress theme.
With the plugin activated posts are not restricted to the box width, and pictures are displayed at enormous size (see attached images).
Deactivating Bootstrap JS did not help.