.body, .navbar, .container-fluid {
    background-color: #005b94;
    color: white;
}

.yellowbuttons {
    display: inline-block;
    font-size: 18px;
    font-weight: bold;
    height: 40px;
    cursor: pointer;
    border-radius: 25px;
    border: 2px solid #FFDA00;
    background-color: #FFDA00;
    color: gray;
    width: 150px;
    margin: auto 10px;
}

    .yellowbuttons:hover {
        border: 2px solid #FFDA00;
        background-color: white;
        color: gray;
    }

.navbar-dark .navbar-nav .nav-link:focus, .navbar-dark .navbar-nav .nav-link:hover {
    color: white;
}