body, html {
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
}

.sidebar {
    width: 209px;
    background-color: #f1f1f1;
    position: fixed;
}

.content {
    margin-left: 200px;
}

.post {
    margin-top: 50px;
    padding: 20px;
    border: 1px solid #ccc;
    background-color: #fff;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    margin-bottom: 10px;
}

a {
    text-decoration: none;
    color: #333;
}

a:hover {
    color: #000;
}