.navbar {
    background-color: #28a745 !important;
    border-top: 5px solid #000;
}

.navbar-brand {
    color: #fff !important;
}

.navbar-toggler {
    border-color: #fff;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba%2870, 70, 70, 0.5%29' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E") !important;
}