body {
    font-family: Arial;
    background: #111;
    color: #eee;
}

.topbar {
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:10px;
    background:#222;
    margin-bottom:10px;
}

.topbar a {
    color:#0af;
    text-decoration:none;
    margin-left:10px;
}

.topbar a.logout {
    color:#f55;
}

.container {
    padding:10px;
}

input, select, button {
    padding:5px;
    margin:5px 0;
    background:#222;
    color:#eee;
    border:1px solid #555;
}

button {
    cursor:pointer;
}

a {
    color:#0af;
}