normal.para.spacing attribute set
normal.para.spacing What space do you want between normal paragraphs
1em 0.8em 1.2em

## Description

Specify the spacing required between normal paragraphs as well as the following block-level elements:

    ackno
    acknowledgements
    cmdsynopsis
    glosslist
    sidebar
    simpara
    simplelist

To customize the spacing, you need to reset all three attributes.

To specify properties on just para elements without affecting these other elements, use the para.properties attribute-set.