body {
    font-family: monospace;
    background: #f0f0f0;
    padding: 20px;
}

table {
    border-collapse: collapse;
    width: 100%;
    background: white;
}

th, td {
    border: 1px solid black;
    padding: 5px;
    text-align: left;
}

th {
    background: #ccc;
}

.form-box {
    border: 2px solid black;
    padding: 10px;
    margin-bottom: 20px;
    background: #e0e0e0;
}

nav {
    margin-bottom: 20px;
    border-bottom: 2px solid black;
    padding-bottom: 10px;
}