html {
    background: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
}

body {
    width: 1000px;
    padding: 40px;
    box-sizing: border-box;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 3px 6px 15px rgba(0, 0, 0, 0.05);
    border-radius: 3px;
    margin-top: 100px;
    margin-bottom: 100px;
}

* {
    line-height: 140% !important;
    font-family: sans-serif;
    font-size: 18px;
}