body {
    font-family: Arial, sans-serif;
    padding: 20px;
}

nav {
    margin-bottom: 20px;
}

nav a {
    margin-right: 10px;
}

.flashes {
    list-style-type: none;
    padding: 0;
}

.flashes li {
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 5px;
}

.flashes .success {
    background-color: #d4edda;
    color: #155724;
}

.flashes .error {
    background-color: #f8d7da;
    color: #721c24;
}

.content {
    max-width: 800px;
    margin: auto;
}