style.css

@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');

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

body {
    background-color: #686de0;
    font-family: 'Roboto', sans-serif;
    height: 100vh;
    padding: 20px;
}

.container {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1), 0 6px 6px rgba(0, 0, 0, 0.1);
    padding: 20px;
    text-align: center;
    max-width: 100%;
    width: 800px;
    margin: 80px auto 0;
}

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

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

.btn {
    background-color: #9f68e0;
    border: 0;
    border-radius: 10px;
    color: #fff;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1), 0 6px 6px rgba(0, 0, 0, 0.1);
    padding: 15px 30px;
    font-size: 16px;
    cursor: pointer;
    letter-spacing: 2px;
    text-transform: capitalize;
}

.btn:active, .btn:hover {
    transform: scale(0.95);
    transition: all .5s ease-in-out;
}

.btn:focus {
    outline: 0;
}

.footer {
    text-align: center;
    color: #fff;
    padding: 2rem 0;
    margin-top: 200px;
}

.footer__title {
    font-size: 25px;
    margin-bottom: 2rem;
}

.footer__social {
    margin: 20px 0;
}

.footer__icon {
    font-size: 1.5rem;
    color: #fff;
    margin: 0 1rem;
    top: 80px;
}