.navbar-item img {
    max-height: 90%;
}

.navbar-item.host_music_session {
    background-color: #960000;
    color: #ffffff;
}

.navbar-item.host_music_session:hover {
    background-color: #d63535 !important;
}

#donation_box {
    display: flex;
    justify-content: center;
    align-items: center;
}

#donation_box form {
    margin-left: 20px;
}