MediaWiki:Common.css

.custom-header {
    border-radius: 4px;
    border: 1px solid #E3E8EE;
    background-color: #112B3C; /* Updated background color */
    height: 68px;
     
}

.p-logo {
    margin-left: 25px;
}

#p-personal .p-personal-tools, .p-personal .p-personal-tools {
    text-align: center !important;
    margin-left: 25px;
}

#p-personal .p-personal-tools a, .p-personal .p-personal-tools a {
    color: white !important; 
}