Outline/Border for multiline rich text box in SharePoint

Hi,

I am trying to add border/outline for multi line text box in SharePoint New Form but it is not working. I am using below line for single line text box which is not working for multi line text box. Any idea why it is not working? Any help would be greatly appreciated.

$("input[id^='columninternalName']").css({outline:"1px red solid"});

Thank you.

OK29