MediaWiki:Common.css

/* CSS placed here will be applied to all skins */

.color-left {
	background: #006699;
}

.color-right {
	background: #006699;
}

#mw-content 
h1.firstHeading {
    border-bottom: solid 4px #006699;
}

#mw-content-container {
    border-bottom: solid 4px #006699; !important
}