pre, code, tt, dt {
    font: 100% monospace;
    margin: 20px 0;
}

pre, blockquote {
    padding: 15px;
    background-color: #ffffff;
    margin: 20px 0;
    -moz-border-radius: 10px;
}

td pre {
    font: 85% monospace;
    padding: 5px;
    margin: 5px 0;
}