#sub-header ul li:hover,
body.index li.index,
body.station li.station,
body.graph li.graph,
body.map li.map,
body.mapsalinity li.mapsalinity,
body.document li.document {
    background-color: #81DAF5;
}

    #sub-header ul li:hover a,
    body.index li.index a,
    body.station li.station a,
    body.graph li.graph a,
    body.map li.map a,
    body.mapsalinity li.mapsalinity a,
    body.document li.document a {
        color: #fff;
    }