*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    height: 100vh;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 200px;
    height: 100vh;
    background-color: #333;
    color: white;
    padding: 20px;
}

.sidebar a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 10px 0;
    text-align: center;
    border-radius: 8px;
}

.sidebar a.red{
    background-color: red;
}

.sidebar a:hover {
    background-color: #555;
    
}

.main-content {
    margin-left: 200px;
    justify-content: center;
    flex: 1;
    padding: 20px;
    text-align: center;
}