body {
    margin: 0%;
    background: linear-gradient(to left bottom, lightblue, darkblue, lightblue);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container {
    background-color: rgba(255, 255, 255, .3);
    padding: 20px;
    box-shadow: 0 6px 5px rgba(0, 0, 0, 0.479);
    border-radius: 15px;
    width: 85%;
    text-align: center;
    color: rgb(255, 255, 255);
}

.heading {
    font-size: 35px;
    font-weight: 20px;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
    text-shadow: 5px 5px 2px rgba(0, 0, 0, 0.301);
}

.joke {
    font-size: 25px;
    font-weight: 200;
    margin: 40px;
    color: rgb(238, 255, 0);
}

.btn {
    font-size: 18px;
    font-weight: 500;
    border-radius: 5px;
    cursor: pointer;
    padding: 20px;
    background-color: rgb(199, 195, 255);
    border: 0;
    text-transform: uppercase;
    width: 300px;
    color: rgb(0, 0, 0);
}

.btn:hover{
    background-color: #1818ce;
    color: white;
    transition: all 300ms ease-in;
    box-shadow: 0 4px 4px rgba(0, 0, 0, 0.452);
}

.btn:active{
    background-color: #000000;
    color: rgb(255, 255, 255);
    transition: all 300ms ease;
    box-shadow: 0 4px 4px rgba(0, 0, 0, 0.452);
}