WordPress Post / Page visual editor missing.
Just simply go to your WordPress profile and ENABLE / DISABLE the settings. Please image below.

Copy and paste the codes below. HTML JQUERY CSS
Add column classes and add first class in every first column. Just change the _index = ( _index + 3 ); to your custom column. Example, if you want to create 5 columns change the _index + 3 to _index + 4 if you want to create 6 columns change the _index + 3 to…
Use the `[anton-accordion]` to display the shortcode in your pages. To use the specific category of your accordion, use the `cat` attributes. Use the category value in `cat` attributes. [anton-accordion cat=”1″] // 1 is the category ID
How to add @mention in Buddypress single media page (or rtMedia single page)? Copy the codes below to your functions.php Next is override the media-single.php file in your theme folder (wp-content/themes/my-theme/rtmedia/media) . The file path output must be wp-content/themes/my-theme/rtmedia/media/media-single.php. Open the media-single.php in your text editor and find the and replace with the codes below….
Get current posts parent category ID, permalink, name, etc via codes below.
Copy this code to your functions.php file
Im very pleased with your work.