body {
    background-image: url('https://m.media-amazon.com/images/G/01/seo/siege-lists/best-comedy-audiobooks-social.jpg');
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin: 0;
    padding: 20px;
}

.container {
    background-color: white;
    opacity: .8;
    border-radius: 10px;
    box-shadow: 0 10px 20px black, 0 6px 6px black;
    padding: 50px 20px;
    text-align: center;
    max-width: 100%;
    width: 800px;
    font-family: 'Indie Flower', cursive;
    font-weight: 600;
}

h3 {
    margin: 0;
    opacity: 0.5;
    letter-spacing: 2px;
}

.joke {
    font-size: 30px;
    letter-spacing: 1px;
    line-height: 40px;
    max-width: 600px;
    margin: 50px auto;
}

.btn {
    background-color: #9f68e0;
    color: #fff;
    border: o;
    border-radius: 10px;
    box-shadow: 0 5px 15px black, 0 6px 6px black;
    pad: 14px 40px;
    font-size: 16px;

    cursor: pointer;
}

.btn:active {
    transform: scale(.98);
}

.btn:focus {
    outline: 0;
}