body{
    background-color: lightgrey;
}

.bg-custom {
    background-color: darkblue;
}

.navbar-custom { 
            background-color: lightgreen; 
        } 
        /* Modify brand and text color */ 
          
        .navbar-custom .navbar-brand, 
        .navbar-custom .navbar-text { 
            color: green; 
        }