body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f9;
}
#posts-container {
    margin: 20px 0;
}
.post {
    background: white;
    padding: 15px;
    margin: 10px 0;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
input, textarea, button {
    width: 100%;
    padding: 10px;
    margin: 5px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
}
button {
    background-color: #333;
    color: white;
    cursor: pointer;
}