body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f2f2f2;
}

nav a {
    margin-right: 10px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

nav a:hover {
    color: #007BFF;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    margin-top: 10px;
}

th, td {
    border: 1px solid #ccc;
    padding: 8px;
    text-align: center;
}

th {
    background-color: #eee;
}

input, select, button {
    margin: 5px;
    padding: 5px;
}

form div {
  margin-bottom: 10px;
}

form label {
  display: block;
  margin-bottom: 4px;
  font-weight: bold;
}

form input, form select {
  width: 250px;
  padding: 5px;
}