body {
    font-family: 'Verdana', sans-serif;
    background-color: #e0e0e0;
    margin: 0;
    padding: 0;
}

#container {
    width: 90%;
    margin: 0 auto;
    background-color: #ffffff;
    border-radius: 5px;
}

#header {
    background-color: #007BFF;
    color: white;
    padding: 25px;
    text-align: left;
}

#menu {
    background-color: #555;
    color: white;
    padding: 15px;
}

#menu nav a {
    color: white;
    text-decoration: none;
    padding: 5px 15px;
}

#menu .separator {
    color: #ccc;
}

#main {
    padding: 20px;
    margin: 20px 0;
}

#sidebar {
    background-color: #f9f9f9;
    padding: 15px;
    margin: 20px 0;
}

#footer {
    background-color: #555;
    color: white;
    text-align: center;
    padding: 15px;
}