body {
    margin: 40px auto;
    max-width: 650px;
    line-height: 1.6;
    font-size: 18px;
    color: #444;
    padding: 0 10px;
    background: #EEEEEE;
}

h1,
h2,
h3 {
    line-height: 1.2
}

code {
    font-family: Consolas, "courier new";
    color: crimson;
    padding: 2px;
    padding-top: 4px;
    font-size: 105%;
    white-space: pre;
}