[John Lester]

Originally Posted by GRE

It doesn't apply to articles though. Why?

Because cms articles use different css. Put this in your additional.css file (see my first post for location) and adjust line-height as desired.

ACP -> Styles & templates -> style manager -> your style here -> edit templates -> CSS templates -> addtional.css

.cms_article_txt_content {
    -moz-font-feature-settings: normal;
    -moz-font-language-override: normal;
    color: #3E3E3E;
    font-family: Tahoma,Calibri,Verdana,Geneva,sans-serif;
    font-size: 13px;
    line-height: 1.23 !important;
    margin-bottom: 5px;
}

--------------- Added 03 Nov 2012 at 12:21 ---------------

Originally Posted by Chadi

I'd like to apply this mainly to the forum posts. The code doesn't work on the forum posts (paragraphs). How can I do so?

Thanks

You need different code, add the following to additional.css template (see my first post for location) and adjust line-height as desired.

ACP -> Styles & templates -> style manager -> your style here -> edit templates -> CSS templates -> addtional.css

.postbit .postrow {
    -moz-font-feature-settings: normal;
    -moz-font-language-override: normal;
    font-family: Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;
    font-size: 13px;
    line-height: 1.23 !important;
}