Remove spacing and indent, but not always

[griffitts]

I've been converting from html to epub. I use the remove spacing between paragraphs option and the default indentation. Works great, 99% of the time. However, sometimes I may not want the line removed or the paragraph indented or both. Is there some sort of markup I can use that will tell Calibre to skip this paragraph when indenting and/or removing blank lines?

[griffitts]

Got to messing with it and actually made it work by coming at it from the other direction. I unchecked remove spacing from paragraphs and am using this in my stylesheet:

p {text-align:justify; margin-top:0em; margin-bottom:0em; text-indent:1.5em;}
blockquote {text-align:justify;}
h1,h2,h3,h4,h5,h6 {text-align:center;}

.indent {text-indent:1.5em;}
.noindent {text-indent:0em;}
.center {text-align:center;}
.spaceabove {margin-top:1.25em;}
.spacebelow {margin-bottom:1.25em;}
.spaceboth {margin-bottom:1.25em; margin-top:1.25em;}