.message {
    padding: 10px;
    margin: 5px;
    background-color: #f3f3f3
}

h1, h2, h3, h4 {
    text-align: center;
}

nav a {
    color: #828282;
    font-size: 1.5em;
    margin-left: 50px;
    text-decoration: none;
}

.error {
    background-color: red !important;
}

.hint {
    background-color: yellow !important;
}

nav a img {
    max-height: 36px;
}

.users {
    width: 600px;
}

.bg-secondary {
    background-color: rgb(32, 150, 212) !important
}