html, body {
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Open Sans';
    background-color: rgb(50, 50, 50);
    color: #f7f7f7;
    font-size: 20px;
    padding: 25px;
}

.content {
    max-width: 500px;
}

a, a:link, a:hover, a:visited {
    color: #f7f7f7;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1 {
    font-size: 70px;
    text-align: center;
}

@media(max-width: 768px) {
    body {
        font-size: 18px;
    }

    h1 {
        font-size: 55px;
    }
}