body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    margin: 0;
}

.header {
    background: #222;
    color: white;
    padding: 15px;
    font-size: 28px;
    text-align: center;
}

.container {
    width: 800px;
    margin: auto;
}

.card {
    background: white;
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 0 5px #ccc;
}

.title {
    font-size: 20px;
    font-weight: bold;
}

.joke {
    margin-top: 10px;
    font-size: 18px;
}