html,
body {
    height: 100%;
    overflow: hidden;
    background-color: #00bfff;
}

body {
    /* can also be whatever container */
    display: flex;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
}

.container {
    align-items: center;
    max-width: 400px;
    padding: 50px 20px;
    background-color: #ffffff;
    box-shadow: rgba(60, 60, 66, 0.61) 0px 7px 29px 0px;
    border-radius: 5px;
    margin: auto;
}

.btn {
    padding: 10px 20px;
    margin: 0 5px;
    font-size: .99rem;
    border-radius: 3px;
    outline: none;
    border: none;
    color: #fff;
}

h1 {
    font-size: 1.5rem;
    color: #636363;
    margin-bottom: 20px;
    font-family: Arial, Helvetica, sans-serif;
}

.btn:hover {
    cursor: pointer;
    background-color: #00bfff;
}

.new-joke-btn {
    background-color: #12a5d6;
}

.joke-text {
    font-size: 1.3rem;
    margin-bottom: 30px;
    font-family: monospace;
    font-style: italic;
    color: #727272;
}

::selection {
    background-color: #e281ff;
}