.menu-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    padding: 0;
    margin: 0;
    margin-bottom: 10px;
    background-color: #777;
}

.menu-left, .menu-right {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-left li, .menu-right li {
    margin: 0 10px;
}

.menu-left a, .menu-right a {
    text-decoration: none;
    color: white;
}

.menu-left li a, .menu-right li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

.menu-left li a:hover, .menu-right li a:hover {
    background-color: #111;
}

.error {
    color: red;
    margin: 15px 0px 15px 0px;
    padding: 5px;
    background-color: #eee;
    border: 1px solid #333;
    font-weight: bold;
}

.notice {
    color: green;
    margin: 15px 0px 15px 0px;
    padding: 5px;
    background-color: #eee;
    border: 1px solid #333;
    font-weight: bold;
}