I find my theme is using TinyMCE editor. i think i find the reason.
/*
Theme Name: Twenty Fourteen
Description: Used to style the TinyMCE editor.
*/
Thx for your help
I’m in the Troubleshoot mode.
And it also appears.
https://cityu.edu.mo/html/3.png
I found that is a class “mceContentBody” caused it.
When I remove it in the HTML, it is normal.
I have disabled all my plugins, the “mceContentBody” seem to belong to Tiny MCE.
https://cityu.edu.mo/html/2.png
I have install health check and disable all plugins, but it doesn’t change anything.
I think it may be theme conflict, but this theme has been modified many versions.
I don’t know how to fix the conflict.
