MediaWiki:Common.css

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/* CSS placed here will be applied to all skins */
.mw-editsection {
    display: none;
}

/* .generated-sidebar  { display:none; }
#p-logo, .generated-sidebar, #p-lang, #p-tb  { display:none; }
https://www.mediawiki.org/wiki/Manual:Interface/Sidebar*/

ul.smw-format.ul-format.exampleclass {
    column-count: 3;
}

/* https://www.mediawiki.org/wiki/User:Subfader/Hide_page_tabs */
#ca-nstab-main { display:none!important; }
#ca-talk { display:none!important; }
.catlinks { display: none; }
.toc, #toc { display: none; }
/* .catlinks { display: none; } - Hide Categories Globally */
/* .toc, #toc { display: none; } - Hide TOC Globally*/

ul ol details {
   padding-bottom:15px; 
}