html, body {
    background-color: #111;
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    color: #fff;
}

.content {
    position: absolute;
    height: auto;
    width: auto;
    left: 50%;
    top: 30%;
    text-align: center;
    transform: translateX(-50%);
}

h1, h2, h3 {
    padding: 0;
    margin: 0;
}

button {
    height: 60px;
    width: 200px;
    border-radius: 30px;
    padding: 12px 18px;
    font-size: 24px;
}