Hi Stuart,

I've tried to replicate again this issue using same content in your blog post. Seems I still cannot reproduce it
Does your browser have any extension or similar add-on having anything to do with “Pinterest”?

However, a Google search for that reveals that the same z-index value has been associated with a Pinterest extension in the past:

https://wordpress.org/support/topic/unwanted-pintererest-code-in-wp-html
http://www.telerik.com/forums/users-with-pinterest-browser-plugin-get-extra-code-added-to-html

The Pinterest Bookmarklet code also uses that same z-index:


So, my first thought would be to examine your browser in detail, looking for anything having to do with Pinterest.

Hi, thanks for your answer. Yes, all the browsers here have Pinterest extensions. Disabling the extension stopped the extra code being added! Thanks for your help with this - I can now stop this irritation.

You are most welcome Stuart. Glad to hear that your issue has been resolved now.

As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.

Have a nice day ahead