Remove the blue line when forwarding an email in Yahoo

That darn blue line when forwarding an email in Yahoo has been bothering me for a while and I found the answer to removing it:

1. Click to forward the email. 
2. Then select all of the message.  
3. On the email toolbar locate the indent buttons. 
4. Click the left indent until the line goes away. 

So easy and yet so hard to find the solution. This may work in other email, give it a try. Works great in Yahoo!