I'm trying to recreate something I did a few years ago:

I have a paragraph that looks like this with paragraph markers ON:

This is the italicized heading formatted with heading styles.
 Body text  blah blah blah blah blah blah blah blah blah blah blah blah
blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah
blah blah blah

And, this with paragraph marks OFF:

This is the italicized heading formatted with heading styles.  Body text  
blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah
blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah

All my attempts to recreate it have been unsuccessful.  Does anyone know
what I did to get this effect?  

Thanks,
sedoc