Visual Blocks plugin
This plugin allows a user to see block level elements in the editable area. It is similar to WYSIWYG hidden character functionality, but at block level. It also adds a toolbar button and a menu item Show blocks
under the View
menu dropdown.
Basic setup
tinymce.init({
selector: 'textarea', // change this value according to your HTML
plugins: 'visualblocks',
menubar: 'view',
toolbar: 'visualblocks'
});