MediaWiki:Common.css

body{
     font-family: 'Roboto',  sans-serif !important;
}

#cosmos-banner{
    box-shadow: 10px 0px 10px black;  
}

h1, h2, h3, h4, h5, h6{
 font-family: 'Press Start 2P', sans-serif !important;
color: #80FFFC;
}

body #mw-content{
border: 2px solid #80FFFC;
}

.cosmos-header::before{
text-shadow: 
    border-radius: 10px 10px 0px 0px !important;
    background-color:rgba(7,242,242,0.6)!important;
}

.cdx-menu-item cdx-menu-item--enabled cdx-menu-item--bold-label cdx-menu-item--hide-description-overflow{
color: cyan!important;
background-color: black!important;
border-radius: 0px 0px 10px 10px!important;
}