.sidebar-nav {
    margin-top: 20px;
    padding: 0;
    list-style: none;
}
div.okay {
    background-color: greenyellow;
    padding: 5px;
    text-align: center;
    border-radius: 5px;
}
div.open {
    background-color: blue;
    color: white;
    padding: 5px;
    text-align: center;
    border-radius: 5px;
}
div.error {
    background-color: red;
    color: white;
    padding: 5px;
    text-align: center;
    border-radius: 5px;
}