Hi Adam,

My explanation was not clear I'm sorry. Have a look at the three attached files, you will understand what I'm talking about.

The first  attachment shows the original file. 

The second attachment shows the html code pasted in CuteEditor and viewed on the Preview tab.

The third attachment shows the Result of the html submitted to cute editor in this attachment you can clearly see 2 wide gray lines which do not appears on the other attachments.