wp-tinymce-tailwind.php

<?php

/*
 * TinyMCE: Add Tailwind CSS style
 */
add_editor_style('/assets/css/tailwind.min.css');

/*
 * TinyMCE: Remove WP styles
 */
add_filter('mce_css', 'my_tinymce_remove_stylesheets');
function my_tinymce_remove_stylesheets($stylesheets){
    
    $stylesheets = explode(',', $stylesheets);
    
    foreach($stylesheets as $key => $sheet){
        
        if(!preg_match('/wp\-includes/', $sheet))
            continue;
        
        unset($stylesheets[$key]);
        
    }
    
    $stylesheets = implode(',', $stylesheets);
    
    return $stylesheets;

}

/*
 * TinyMCE: Remove the hardcoded 'lightgray' skin style
 */
add_filter('tiny_mce_before_init', 'my_tinymce_remove_hardcoded_skin');
function my_tinymce_remove_hardcoded_skin($init){
    
    $init['init_instance_callback'] = ''
    . 'function(){'
    . '    jQuery("#content_ifr").contents().find("link[href*=\'content.min.css\']").remove();'
    . '}';
    
    return $init;
    
}