body {
    background-color: #222;
    margin: auto 0;
    color:aliceblue;
}

.navbar {
    background-color: #212E13;
   
}
.navbar a {
     color:#F2F5F0;
     text-decoration: none;
}
.navbar  a.nav-link.active {
     color:lightgreen;
     text-decoration: none;
}

.navbar  .dropdown-menu a.dropdown-item  {
     color:#222;
     background-color: aquamarine;
     text-decoration: underline;
}

.footer {
     background-color: #212E13;
}
/* rule for buttons */
button.btn .btn-lg .btn-outline {
     padding-bottom:0.75rem;
}

/* rule for images row */
.card-group img{
     max-width: 100%; height: 100%;
}

/* rule for a links in social media row */
#social_row a:link {
     color:aliceblue;
}
#social_row a:visited {
     color:purple;
}