Is there a hook to put stylesheet and/or JS inside iframes (thickbox or tinyMCE) in admin area
You could over-ride the CSS by using the admin_print_scripts admin_head-media-upload-popup and add css to match your needs. This can be done via the functions.php file or by creating a plugin. Here is the code in a plugin format to begin adding style: <?php /* Plugin Name: Some Name Description: Custom Thickbox Styles */ add_action(‘admin_head-media-upload-popup’, ‘custom_tb_styles’); … Read more