How to make content on editor and website same

Hello Syams,

That separator is used by the theme in the backend when you edit your post to know when the post content will fit when the sidebar is active. Also, if you want to remove the sidebar line on the editor, please try to follow the next topic here -> https://forum.tagdiv.com/topic/editor-and-sidebar-line/ because there you will find steps which you have to follow if you want to get rid of it the sidebar in back-end editor.

If is not what you mean, please provide more details so I will be able to provide a more accurate response.

Thanks for your understanding!