body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}
nav {
    background-color: #333;
    padding: 1rem;
}
nav a {
    color: white;
    margin-right: 1rem;
    text-decoration: none;
}
main {
    padding: 2rem;
}
form input, form textarea, form select, form button {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.5rem;
}
ul {
    list-style-type: none;
    padding: 0;
}
.flashes {
    color: red;
}