Customizing
From MediaWiki Pivot Skin
If you would like to change the color of the Pivot top bar to something else more fitting to your site design you can add some CSS code to your MediaWiki:Pivot.css
system message page easily. For example:
Changing Top Bar Color
/* Custom colors - top bar*/
.tab-bar {
background: #517398;
}
Sidebar
/* style the labels */
ul.side-nav label {
background: #517398;
color: #fff;
padding: .25em .5em;
}
Sidebar Background color
/* sidebar background color */
body {
background-color: #dceaea;
}
Main Body of Page Content
/* controls the main body area styling */
#p-cactions {
padding-top: 1.5em;
padding-bottom: .5em;
background-color: #f6f6f6;
border-left: 1px solid #ccc;
border-right: 1px solid #ccc;
}