How to disabled or non-editable text editor using CSS or jQuery

Question

I am using a rich text editor on my portal. Is there any way not to edit this without permission from the admin? I mean can we disabled it?

I also testing this jQuery rich text

I tried the below code but it's still allowing me to edit.

HTML

  <textarea class="contenteditor1 disabledme" name="message"  hidden="hidden"><?php echo $info['message'];?></textarea>

jquery

$('.disabledme').attr('disabled', 'disabled');